diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index e9095ac52..c33910ade 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -584,15 +584,23 @@ add_library(core STATIC
     hle/service/lm/lm.h
     hle/service/mig/mig.cpp
     hle/service/mig/mig.h
+    hle/service/mii/types/char_info.cpp
+    hle/service/mii/types/char_info.h
+    hle/service/mii/types/core_data.cpp
+    hle/service/mii/types/core_data.h
+    hle/service/mii/types/raw_data.cpp
+    hle/service/mii/types/raw_data.h
+    hle/service/mii/types/store_data.cpp
+    hle/service/mii/types/store_data.h
+    hle/service/mii/types/ver3_store_data.cpp
+    hle/service/mii/types/ver3_store_data.h
     hle/service/mii/mii.cpp
     hle/service/mii/mii.h
     hle/service/mii/mii_manager.cpp
     hle/service/mii/mii_manager.h
     hle/service/mii/mii_result.h
+    hle/service/mii/mii_types.h
     hle/service/mii/mii_util.h
-    hle/service/mii/raw_data.cpp
-    hle/service/mii/raw_data.h
-    hle/service/mii/types.h
     hle/service/mm/mm_u.cpp
     hle/service/mm/mm_u.h
     hle/service/mnpp/mnpp_app.cpp
diff --git a/src/core/hle/service/am/applets/applet_mii_edit_types.h b/src/core/hle/service/am/applets/applet_mii_edit_types.h
index 4705d019f..f3d764073 100644
--- a/src/core/hle/service/am/applets/applet_mii_edit_types.h
+++ b/src/core/hle/service/am/applets/applet_mii_edit_types.h
@@ -7,7 +7,8 @@
 
 #include "common/common_funcs.h"
 #include "common/common_types.h"
-#include "core/hle/service/mii/types.h"
+#include "common/uuid.h"
+#include "core/hle/service/mii/types/char_info.h"
 
 namespace Service::AM::Applets {
 
diff --git a/src/core/hle/service/mii/mii.cpp b/src/core/hle/service/mii/mii.cpp
index bf3ee5907..680f06beb 100644
--- a/src/core/hle/service/mii/mii.cpp
+++ b/src/core/hle/service/mii/mii.cpp
@@ -120,7 +120,7 @@ private:
 
         std::vector<CharInfo> values;
         for (const auto& element : default_miis) {
-            values.emplace_back(element.info);
+            values.emplace_back(element.char_info);
         }
 
         ctx.WriteBuffer(SerializeArray(values));
diff --git a/src/core/hle/service/mii/mii_manager.cpp b/src/core/hle/service/mii/mii_manager.cpp
index de70c3da6..035eed505 100644
--- a/src/core/hle/service/mii/mii_manager.cpp
+++ b/src/core/hle/service/mii/mii_manager.cpp
@@ -12,7 +12,8 @@
 #include "core/hle/service/mii/mii_manager.h"
 #include "core/hle/service/mii/mii_result.h"
 #include "core/hle/service/mii/mii_util.h"
-#include "core/hle/service/mii/raw_data.h"
+#include "core/hle/service/mii/types/core_data.h"
+#include "core/hle/service/mii/types/raw_data.h"
 
 namespace Service::Mii {
 
@@ -29,13 +30,12 @@ std::array<T, DestArraySize> ResizeArray(const std::array<T, SourceArraySize>& i
     return out;
 }
 
-CharInfo ConvertStoreDataToInfo(const MiiStoreData& data) {
-    MiiStoreBitFields bf;
-    std::memcpy(&bf, data.data.data.data(), sizeof(MiiStoreBitFields));
+CharInfo ConvertStoreDataToInfo(const StoreData& data) {
+    const StoreDataBitFields& bf = data.core_data.data;
 
     return {
-        .uuid = data.data.uuid,
-        .name = ResizeArray<char16_t, 10, 11>(data.data.name),
+        .create_id = data.create_id,
+        .name = data.core_data.name,
         .font_region = static_cast<u8>(bf.font_region.Value()),
         .favorite_color = static_cast<u8>(bf.favorite_color.Value()),
         .gender = static_cast<u8>(bf.gender.Value()),
@@ -89,8 +89,8 @@ CharInfo ConvertStoreDataToInfo(const MiiStoreData& data) {
     };
 }
 
-MiiStoreData BuildRandomStoreData(Age age, Gender gender, Race race, const Common::UUID& user_id) {
-    MiiStoreBitFields bf{};
+StoreData BuildRandomStoreData(Age age, Gender gender, Race race, const Common::UUID& user_id) {
+    StoreDataBitFields bf{};
 
     if (gender == Gender::All) {
         gender = MiiUtil::GetRandomValue<Gender>(Gender::Maximum);
@@ -270,8 +270,8 @@ MiiStoreData BuildRandomStoreData(Age age, Gender gender, Race race, const Commo
     return {DefaultMiiName, bf, user_id};
 }
 
-MiiStoreData BuildDefaultStoreData(const DefaultMii& info, const Common::UUID& user_id) {
-    MiiStoreBitFields bf{};
+StoreData BuildDefaultStoreData(const DefaultMii& info, const Common::UUID& user_id) {
+    StoreDataBitFields bf{};
 
     bf.font_region.Assign(info.font_region);
     bf.favorite_color.Assign(info.favorite_color);
@@ -328,15 +328,15 @@ MiiStoreData BuildDefaultStoreData(const DefaultMii& info, const Common::UUID& u
 
 } // namespace
 
-MiiStoreData::MiiStoreData() = default;
+StoreData::StoreData() = default;
 
-MiiStoreData::MiiStoreData(const Nickname& name, const MiiStoreBitFields& bit_fields,
-                           const Common::UUID& user_id) {
-    data.name = name;
-    data.uuid = Common::UUID::MakeRandomRFC4122V4();
+StoreData::StoreData(const Nickname& name, const StoreDataBitFields& bit_fields,
+                     const Common::UUID& user_id) {
+    core_data.name = name;
+    create_id = Common::UUID::MakeRandomRFC4122V4();
 
-    std::memcpy(data.data.data(), &bit_fields, sizeof(MiiStoreBitFields));
-    data_crc = MiiUtil::CalculateCrc16(data.data.data(), sizeof(data));
+    core_data.data = bit_fields;
+    data_crc = MiiUtil::CalculateCrc16(&core_data.data, sizeof(core_data.data));
     device_crc = MiiUtil::CalculateCrc16(&user_id, sizeof(Common::UUID));
 }
 
@@ -641,8 +641,8 @@ bool MiiManager::ValidateV3Info(const Ver3StoreData& mii_v3) const {
     return is_valid;
 }
 
-std::vector<MiiInfoElement> MiiManager::GetDefault(SourceFlag source_flag) {
-    std::vector<MiiInfoElement> result;
+std::vector<CharInfoElement> MiiManager::GetDefault(SourceFlag source_flag) {
+    std::vector<CharInfoElement> result;
 
     if ((source_flag & SourceFlag::Default) == SourceFlag::None) {
         return result;
diff --git a/src/core/hle/service/mii/mii_manager.h b/src/core/hle/service/mii/mii_manager.h
index 0c8295ebe..1f5c9e16f 100644
--- a/src/core/hle/service/mii/mii_manager.h
+++ b/src/core/hle/service/mii/mii_manager.h
@@ -6,7 +6,10 @@
 #include <vector>
 
 #include "core/hle/result.h"
-#include "core/hle/service/mii/types.h"
+#include "core/hle/service/mii/mii_types.h"
+#include "core/hle/service/mii/types/char_info.h"
+#include "core/hle/service/mii/types/store_data.h"
+#include "core/hle/service/mii/types/ver3_store_data.h"
 
 namespace Service::Mii {
 
@@ -25,7 +28,7 @@ public:
     CharInfo BuildDefault(std::size_t index);
     CharInfo ConvertV3ToCharInfo(const Ver3StoreData& mii_v3) const;
     bool ValidateV3Info(const Ver3StoreData& mii_v3) const;
-    std::vector<MiiInfoElement> GetDefault(SourceFlag source_flag);
+    std::vector<CharInfoElement> GetDefault(SourceFlag source_flag);
     Result GetIndex(const CharInfo& info, u32& index);
 
     // This is nn::mii::detail::Ver::StoreDataRaw::BuildFromStoreData
@@ -34,6 +37,15 @@ public:
     // This is nn::mii::detail::NfpStoreDataExtentionRaw::SetFromStoreData
     NfpStoreDataExtension SetFromStoreData(const CharInfo& mii) const;
 
+    struct MiiDatabase {
+        u32 magic{}; // 'NFDB'
+        std::array<StoreData, 0x64> miis{};
+        INSERT_PADDING_BYTES(1);
+        u8 count{};
+        u16 crc{};
+    };
+    static_assert(sizeof(MiiDatabase) == 0x1A98, "MiiDatabase has incorrect size.");
+
 private:
     const Common::UUID user_id{};
     u64 update_counter{};
diff --git a/src/core/hle/service/mii/mii_types.h b/src/core/hle/service/mii/mii_types.h
new file mode 100644
index 000000000..ff836dcf2
--- /dev/null
+++ b/src/core/hle/service/mii/mii_types.h
@@ -0,0 +1,157 @@
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <type_traits>
+
+#include "common/bit_field.h"
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "common/uuid.h"
+
+namespace Service::Mii {
+
+enum class Age : u32 {
+    Young,
+    Normal,
+    Old,
+    All,
+};
+
+enum class BeardType : u32 {
+    None,
+    Beard1,
+    Beard2,
+    Beard3,
+    Beard4,
+    Beard5,
+};
+
+enum class BeardAndMustacheFlag : u32 {
+    Beard = 1,
+    Mustache,
+    All = Beard | Mustache,
+};
+DECLARE_ENUM_FLAG_OPERATORS(BeardAndMustacheFlag);
+
+enum class FontRegion : u32 {
+    Standard,
+    China,
+    Korea,
+    Taiwan,
+};
+
+enum class Gender : u32 {
+    Male,
+    Female,
+    All,
+    Maximum = Female,
+};
+
+enum class HairFlip : u32 {
+    Left,
+    Right,
+    Maximum = Right,
+};
+
+enum class MustacheType : u32 {
+    None,
+    Mustache1,
+    Mustache2,
+    Mustache3,
+    Mustache4,
+    Mustache5,
+};
+
+enum class Race : u32 {
+    Black,
+    White,
+    Asian,
+    All,
+};
+
+enum class Source : u32 {
+    Database = 0,
+    Default = 1,
+    Account = 2,
+    Friend = 3,
+};
+
+enum class SourceFlag : u32 {
+    None = 0,
+    Database = 1 << 0,
+    Default = 1 << 1,
+};
+DECLARE_ENUM_FLAG_OPERATORS(SourceFlag);
+
+using Nickname = std::array<char16_t, 10>;
+
+struct NfpStoreDataExtension {
+    u8 faceline_color;
+    u8 hair_color;
+    u8 eye_color;
+    u8 eyebrow_color;
+    u8 mouth_color;
+    u8 beard_color;
+    u8 glass_color;
+    u8 glass_type;
+};
+static_assert(sizeof(NfpStoreDataExtension) == 0x8, "NfpStoreDataExtension is an invalid size");
+
+struct DefaultMii {
+    u32 face_type{};
+    u32 face_color{};
+    u32 face_wrinkle{};
+    u32 face_makeup{};
+    u32 hair_type{};
+    u32 hair_color{};
+    HairFlip hair_flip{};
+    u32 eye_type{};
+    u32 eye_color{};
+    u32 eye_scale{};
+    u32 eye_aspect{};
+    u32 eye_rotate{};
+    u32 eye_x{};
+    u32 eye_y{};
+    u32 eyebrow_type{};
+    u32 eyebrow_color{};
+    u32 eyebrow_scale{};
+    u32 eyebrow_aspect{};
+    u32 eyebrow_rotate{};
+    u32 eyebrow_x{};
+    u32 eyebrow_y{};
+    u32 nose_type{};
+    u32 nose_scale{};
+    u32 nose_y{};
+    u32 mouth_type{};
+    u32 mouth_color{};
+    u32 mouth_scale{};
+    u32 mouth_aspect{};
+    u32 mouth_y{};
+    MustacheType mustache_type{};
+    BeardType beard_type{};
+    u32 beard_color{};
+    u32 mustache_scale{};
+    u32 mustache_y{};
+    u32 glasses_type{};
+    u32 glasses_color{};
+    u32 glasses_scale{};
+    u32 glasses_y{};
+    u32 mole_type{};
+    u32 mole_scale{};
+    u32 mole_x{};
+    u32 mole_y{};
+    u32 height{};
+    u32 weight{};
+    Gender gender{};
+    u32 favorite_color{};
+    u32 region_move{};
+    FontRegion font_region{};
+    u32 type{};
+    Nickname nickname;
+};
+static_assert(sizeof(DefaultMii) == 0xd8, "MiiStoreData has incorrect size.");
+
+} // namespace Service::Mii
diff --git a/src/core/hle/service/mii/mii_util.h b/src/core/hle/service/mii/mii_util.h
index d98f83825..782ffe22f 100644
--- a/src/core/hle/service/mii/mii_util.h
+++ b/src/core/hle/service/mii/mii_util.h
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
@@ -8,7 +8,7 @@
 #include "common/common_types.h"
 #include "common/swap.h"
 #include "common/uuid.h"
-#include "core/hle/service/mii/types.h"
+#include "core/hle/service/mii/mii_types.h"
 
 namespace Service::Mii {
 class MiiUtil {
diff --git a/src/core/hle/service/mii/types.h b/src/core/hle/service/mii/types.h
deleted file mode 100644
index cc8286189..000000000
--- a/src/core/hle/service/mii/types.h
+++ /dev/null
@@ -1,509 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include <array>
-#include <type_traits>
-
-#include "common/bit_field.h"
-#include "common/common_funcs.h"
-#include "common/common_types.h"
-#include "common/uuid.h"
-
-namespace Service::Mii {
-
-enum class Age : u32 {
-    Young,
-    Normal,
-    Old,
-    All,
-};
-
-enum class BeardType : u32 {
-    None,
-    Beard1,
-    Beard2,
-    Beard3,
-    Beard4,
-    Beard5,
-};
-
-enum class BeardAndMustacheFlag : u32 {
-    Beard = 1,
-    Mustache,
-    All = Beard | Mustache,
-};
-DECLARE_ENUM_FLAG_OPERATORS(BeardAndMustacheFlag);
-
-enum class FontRegion : u32 {
-    Standard,
-    China,
-    Korea,
-    Taiwan,
-};
-
-enum class Gender : u32 {
-    Male,
-    Female,
-    All,
-    Maximum = Female,
-};
-
-enum class HairFlip : u32 {
-    Left,
-    Right,
-    Maximum = Right,
-};
-
-enum class MustacheType : u32 {
-    None,
-    Mustache1,
-    Mustache2,
-    Mustache3,
-    Mustache4,
-    Mustache5,
-};
-
-enum class Race : u32 {
-    Black,
-    White,
-    Asian,
-    All,
-};
-
-enum class Source : u32 {
-    Database = 0,
-    Default = 1,
-    Account = 2,
-    Friend = 3,
-};
-
-enum class SourceFlag : u32 {
-    None = 0,
-    Database = 1 << 0,
-    Default = 1 << 1,
-};
-DECLARE_ENUM_FLAG_OPERATORS(SourceFlag);
-
-using Nickname = std::array<char16_t, 10>;
-
-// nn::mii::CharInfo
-struct CharInfo {
-    Common::UUID uuid;
-    std::array<char16_t, 11> name;
-    u8 font_region;
-    u8 favorite_color;
-    u8 gender;
-    u8 height;
-    u8 build;
-    u8 type;
-    u8 region_move;
-    u8 faceline_type;
-    u8 faceline_color;
-    u8 faceline_wrinkle;
-    u8 faceline_make;
-    u8 hair_type;
-    u8 hair_color;
-    u8 hair_flip;
-    u8 eye_type;
-    u8 eye_color;
-    u8 eye_scale;
-    u8 eye_aspect;
-    u8 eye_rotate;
-    u8 eye_x;
-    u8 eye_y;
-    u8 eyebrow_type;
-    u8 eyebrow_color;
-    u8 eyebrow_scale;
-    u8 eyebrow_aspect;
-    u8 eyebrow_rotate;
-    u8 eyebrow_x;
-    u8 eyebrow_y;
-    u8 nose_type;
-    u8 nose_scale;
-    u8 nose_y;
-    u8 mouth_type;
-    u8 mouth_color;
-    u8 mouth_scale;
-    u8 mouth_aspect;
-    u8 mouth_y;
-    u8 beard_color;
-    u8 beard_type;
-    u8 mustache_type;
-    u8 mustache_scale;
-    u8 mustache_y;
-    u8 glasses_type;
-    u8 glasses_color;
-    u8 glasses_scale;
-    u8 glasses_y;
-    u8 mole_type;
-    u8 mole_scale;
-    u8 mole_x;
-    u8 mole_y;
-    u8 padding;
-};
-static_assert(sizeof(CharInfo) == 0x58, "CharInfo has incorrect size.");
-static_assert(std::has_unique_object_representations_v<CharInfo>,
-              "All bits of CharInfo must contribute to its value.");
-
-#pragma pack(push, 4)
-
-struct MiiInfoElement {
-    MiiInfoElement(const CharInfo& info_, Source source_) : info{info_}, source{source_} {}
-
-    CharInfo info{};
-    Source source{};
-};
-static_assert(sizeof(MiiInfoElement) == 0x5c, "MiiInfoElement has incorrect size.");
-
-struct MiiStoreBitFields {
-    union {
-        u32 word_0{};
-
-        BitField<0, 8, u32> hair_type;
-        BitField<8, 7, u32> height;
-        BitField<15, 1, u32> mole_type;
-        BitField<16, 7, u32> build;
-        BitField<23, 1, HairFlip> hair_flip;
-        BitField<24, 7, u32> hair_color;
-        BitField<31, 1, u32> type;
-    };
-
-    union {
-        u32 word_1{};
-
-        BitField<0, 7, u32> eye_color;
-        BitField<7, 1, Gender> gender;
-        BitField<8, 7, u32> eyebrow_color;
-        BitField<16, 7, u32> mouth_color;
-        BitField<24, 7, u32> beard_color;
-    };
-
-    union {
-        u32 word_2{};
-
-        BitField<0, 7, u32> glasses_color;
-        BitField<8, 6, u32> eye_type;
-        BitField<14, 2, u32> region_move;
-        BitField<16, 6, u32> mouth_type;
-        BitField<22, 2, FontRegion> font_region;
-        BitField<24, 5, u32> eye_y;
-        BitField<29, 3, u32> glasses_scale;
-    };
-
-    union {
-        u32 word_3{};
-
-        BitField<0, 5, u32> eyebrow_type;
-        BitField<5, 3, MustacheType> mustache_type;
-        BitField<8, 5, u32> nose_type;
-        BitField<13, 3, BeardType> beard_type;
-        BitField<16, 5, u32> nose_y;
-        BitField<21, 3, u32> mouth_aspect;
-        BitField<24, 5, u32> mouth_y;
-        BitField<29, 3, u32> eyebrow_aspect;
-    };
-
-    union {
-        u32 word_4{};
-
-        BitField<0, 5, u32> mustache_y;
-        BitField<5, 3, u32> eye_rotate;
-        BitField<8, 5, u32> glasses_y;
-        BitField<13, 3, u32> eye_aspect;
-        BitField<16, 5, u32> mole_x;
-        BitField<21, 3, u32> eye_scale;
-        BitField<24, 5, u32> mole_y;
-    };
-
-    union {
-        u32 word_5{};
-
-        BitField<0, 5, u32> glasses_type;
-        BitField<8, 4, u32> favorite_color;
-        BitField<12, 4, u32> faceline_type;
-        BitField<16, 4, u32> faceline_color;
-        BitField<20, 4, u32> faceline_wrinkle;
-        BitField<24, 4, u32> faceline_makeup;
-        BitField<28, 4, u32> eye_x;
-    };
-
-    union {
-        u32 word_6{};
-
-        BitField<0, 4, u32> eyebrow_scale;
-        BitField<4, 4, u32> eyebrow_rotate;
-        BitField<8, 4, u32> eyebrow_x;
-        BitField<12, 4, u32> eyebrow_y;
-        BitField<16, 4, u32> nose_scale;
-        BitField<20, 4, u32> mouth_scale;
-        BitField<24, 4, u32> mustache_scale;
-        BitField<28, 4, u32> mole_scale;
-    };
-};
-static_assert(sizeof(MiiStoreBitFields) == 0x1c, "MiiStoreBitFields has incorrect size.");
-static_assert(std::is_trivially_copyable_v<MiiStoreBitFields>,
-              "MiiStoreBitFields is not trivially copyable.");
-
-// This is nn::mii::Ver3StoreData
-// Based on citra HLE::Applets::MiiData and PretendoNetwork.
-// https://github.com/citra-emu/citra/blob/master/src/core/hle/applets/mii_selector.h#L48
-// https://github.com/PretendoNetwork/mii-js/blob/master/mii.js#L299
-struct Ver3StoreData {
-    u8 version;
-    union {
-        u8 raw;
-
-        BitField<0, 1, u8> allow_copying;
-        BitField<1, 1, u8> profanity_flag;
-        BitField<2, 2, u8> region_lock;
-        BitField<4, 2, u8> character_set;
-    } region_information;
-    u16_be mii_id;
-    u64_be system_id;
-    u32_be specialness_and_creation_date;
-    std::array<u8, 0x6> creator_mac;
-    u16_be padding;
-    union {
-        u16 raw;
-
-        BitField<0, 1, u16> gender;
-        BitField<1, 4, u16> birth_month;
-        BitField<5, 5, u16> birth_day;
-        BitField<10, 4, u16> favorite_color;
-        BitField<14, 1, u16> favorite;
-    } mii_information;
-    std::array<char16_t, 0xA> mii_name;
-    u8 height;
-    u8 build;
-    union {
-        u8 raw;
-
-        BitField<0, 1, u8> disable_sharing;
-        BitField<1, 4, u8> face_shape;
-        BitField<5, 3, u8> skin_color;
-    } appearance_bits1;
-    union {
-        u8 raw;
-
-        BitField<0, 4, u8> wrinkles;
-        BitField<4, 4, u8> makeup;
-    } appearance_bits2;
-    u8 hair_style;
-    union {
-        u8 raw;
-
-        BitField<0, 3, u8> hair_color;
-        BitField<3, 1, u8> flip_hair;
-    } appearance_bits3;
-    union {
-        u32 raw;
-
-        BitField<0, 6, u32> eye_type;
-        BitField<6, 3, u32> eye_color;
-        BitField<9, 4, u32> eye_scale;
-        BitField<13, 3, u32> eye_vertical_stretch;
-        BitField<16, 5, u32> eye_rotation;
-        BitField<21, 4, u32> eye_spacing;
-        BitField<25, 5, u32> eye_y_position;
-    } appearance_bits4;
-    union {
-        u32 raw;
-
-        BitField<0, 5, u32> eyebrow_style;
-        BitField<5, 3, u32> eyebrow_color;
-        BitField<8, 4, u32> eyebrow_scale;
-        BitField<12, 3, u32> eyebrow_yscale;
-        BitField<16, 4, u32> eyebrow_rotation;
-        BitField<21, 4, u32> eyebrow_spacing;
-        BitField<25, 5, u32> eyebrow_y_position;
-    } appearance_bits5;
-    union {
-        u16 raw;
-
-        BitField<0, 5, u16> nose_type;
-        BitField<5, 4, u16> nose_scale;
-        BitField<9, 5, u16> nose_y_position;
-    } appearance_bits6;
-    union {
-        u16 raw;
-
-        BitField<0, 6, u16> mouth_type;
-        BitField<6, 3, u16> mouth_color;
-        BitField<9, 4, u16> mouth_scale;
-        BitField<13, 3, u16> mouth_horizontal_stretch;
-    } appearance_bits7;
-    union {
-        u8 raw;
-
-        BitField<0, 5, u8> mouth_y_position;
-        BitField<5, 3, u8> mustache_type;
-    } appearance_bits8;
-    u8 allow_copying;
-    union {
-        u16 raw;
-
-        BitField<0, 3, u16> bear_type;
-        BitField<3, 3, u16> facial_hair_color;
-        BitField<6, 4, u16> mustache_scale;
-        BitField<10, 5, u16> mustache_y_position;
-    } appearance_bits9;
-    union {
-        u16 raw;
-
-        BitField<0, 4, u16> glasses_type;
-        BitField<4, 3, u16> glasses_color;
-        BitField<7, 4, u16> glasses_scale;
-        BitField<11, 5, u16> glasses_y_position;
-    } appearance_bits10;
-    union {
-        u16 raw;
-
-        BitField<0, 1, u16> mole_enabled;
-        BitField<1, 4, u16> mole_scale;
-        BitField<5, 5, u16> mole_x_position;
-        BitField<10, 5, u16> mole_y_position;
-    } appearance_bits11;
-
-    std::array<u16_le, 0xA> author_name;
-    INSERT_PADDING_BYTES(0x2);
-    u16_be crc;
-};
-static_assert(sizeof(Ver3StoreData) == 0x60, "Ver3StoreData is an invalid size");
-
-struct NfpStoreDataExtension {
-    u8 faceline_color;
-    u8 hair_color;
-    u8 eye_color;
-    u8 eyebrow_color;
-    u8 mouth_color;
-    u8 beard_color;
-    u8 glass_color;
-    u8 glass_type;
-};
-static_assert(sizeof(NfpStoreDataExtension) == 0x8, "NfpStoreDataExtension is an invalid size");
-
-struct MiiStoreData {
-
-    MiiStoreData();
-    MiiStoreData(const Nickname& name, const MiiStoreBitFields& bit_fields,
-                 const Common::UUID& user_id);
-
-    // This corresponds to the above structure MiiStoreBitFields. I did it like this because the
-    // BitField<> type makes this (and any thing that contains it) not trivially copyable, which is
-    // not suitable for our uses.
-    struct {
-        std::array<u8, 0x1C> data{};
-        static_assert(sizeof(MiiStoreBitFields) == sizeof(data), "data field has incorrect size.");
-
-        Nickname name{};
-        Common::UUID uuid{};
-    } data;
-
-    u16 data_crc{};
-    u16 device_crc{};
-};
-static_assert(sizeof(MiiStoreData) == 0x44, "MiiStoreData has incorrect size.");
-
-struct MiiStoreDataElement {
-    MiiStoreData data{};
-    Source source{};
-};
-static_assert(sizeof(MiiStoreDataElement) == 0x48, "MiiStoreDataElement has incorrect size.");
-
-struct MiiDatabase {
-    u32 magic{}; // 'NFDB'
-    std::array<MiiStoreData, 0x64> miis{};
-    INSERT_PADDING_BYTES(1);
-    u8 count{};
-    u16 crc{};
-};
-static_assert(sizeof(MiiDatabase) == 0x1A98, "MiiDatabase has incorrect size.");
-
-struct RandomMiiValues {
-    std::array<u8, 0xbc> values{};
-};
-static_assert(sizeof(RandomMiiValues) == 0xbc, "RandomMiiValues has incorrect size.");
-
-struct RandomMiiData4 {
-    Gender gender{};
-    Age age{};
-    Race race{};
-    u32 values_count{};
-    std::array<u32, 47> values{};
-};
-static_assert(sizeof(RandomMiiData4) == 0xcc, "RandomMiiData4 has incorrect size.");
-
-struct RandomMiiData3 {
-    u32 arg_1;
-    u32 arg_2;
-    u32 values_count;
-    std::array<u32, 47> values{};
-};
-static_assert(sizeof(RandomMiiData3) == 0xc8, "RandomMiiData3 has incorrect size.");
-
-struct RandomMiiData2 {
-    u32 arg_1;
-    u32 values_count;
-    std::array<u32, 47> values{};
-};
-static_assert(sizeof(RandomMiiData2) == 0xc4, "RandomMiiData2 has incorrect size.");
-
-struct DefaultMii {
-    u32 face_type{};
-    u32 face_color{};
-    u32 face_wrinkle{};
-    u32 face_makeup{};
-    u32 hair_type{};
-    u32 hair_color{};
-    HairFlip hair_flip{};
-    u32 eye_type{};
-    u32 eye_color{};
-    u32 eye_scale{};
-    u32 eye_aspect{};
-    u32 eye_rotate{};
-    u32 eye_x{};
-    u32 eye_y{};
-    u32 eyebrow_type{};
-    u32 eyebrow_color{};
-    u32 eyebrow_scale{};
-    u32 eyebrow_aspect{};
-    u32 eyebrow_rotate{};
-    u32 eyebrow_x{};
-    u32 eyebrow_y{};
-    u32 nose_type{};
-    u32 nose_scale{};
-    u32 nose_y{};
-    u32 mouth_type{};
-    u32 mouth_color{};
-    u32 mouth_scale{};
-    u32 mouth_aspect{};
-    u32 mouth_y{};
-    MustacheType mustache_type{};
-    BeardType beard_type{};
-    u32 beard_color{};
-    u32 mustache_scale{};
-    u32 mustache_y{};
-    u32 glasses_type{};
-    u32 glasses_color{};
-    u32 glasses_scale{};
-    u32 glasses_y{};
-    u32 mole_type{};
-    u32 mole_scale{};
-    u32 mole_x{};
-    u32 mole_y{};
-    u32 height{};
-    u32 weight{};
-    Gender gender{};
-    u32 favorite_color{};
-    u32 region_move{};
-    FontRegion font_region{};
-    u32 type{};
-    Nickname nickname;
-};
-static_assert(sizeof(DefaultMii) == 0xd8, "MiiStoreData has incorrect size.");
-
-#pragma pack(pop)
-
-} // namespace Service::Mii
diff --git a/src/core/hle/service/mii/types/char_info.cpp b/src/core/hle/service/mii/types/char_info.cpp
new file mode 100644
index 000000000..250fad44b
--- /dev/null
+++ b/src/core/hle/service/mii/types/char_info.cpp
@@ -0,0 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/mii/types/char_info.h"
+
+namespace Service::Mii {} // namespace Service::Mii
diff --git a/src/core/hle/service/mii/types/char_info.h b/src/core/hle/service/mii/types/char_info.h
new file mode 100644
index 000000000..5741b5089
--- /dev/null
+++ b/src/core/hle/service/mii/types/char_info.h
@@ -0,0 +1,76 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/mii/mii_types.h"
+
+namespace Service::Mii {
+
+// This is nn::mii::detail::CharInfoRaw
+struct CharInfo {
+    Common::UUID create_id;
+    Nickname name;
+    u16 null_terminator;
+    u8 font_region;
+    u8 favorite_color;
+    u8 gender;
+    u8 height;
+    u8 build;
+    u8 type;
+    u8 region_move;
+    u8 faceline_type;
+    u8 faceline_color;
+    u8 faceline_wrinkle;
+    u8 faceline_make;
+    u8 hair_type;
+    u8 hair_color;
+    u8 hair_flip;
+    u8 eye_type;
+    u8 eye_color;
+    u8 eye_scale;
+    u8 eye_aspect;
+    u8 eye_rotate;
+    u8 eye_x;
+    u8 eye_y;
+    u8 eyebrow_type;
+    u8 eyebrow_color;
+    u8 eyebrow_scale;
+    u8 eyebrow_aspect;
+    u8 eyebrow_rotate;
+    u8 eyebrow_x;
+    u8 eyebrow_y;
+    u8 nose_type;
+    u8 nose_scale;
+    u8 nose_y;
+    u8 mouth_type;
+    u8 mouth_color;
+    u8 mouth_scale;
+    u8 mouth_aspect;
+    u8 mouth_y;
+    u8 beard_color;
+    u8 beard_type;
+    u8 mustache_type;
+    u8 mustache_scale;
+    u8 mustache_y;
+    u8 glasses_type;
+    u8 glasses_color;
+    u8 glasses_scale;
+    u8 glasses_y;
+    u8 mole_type;
+    u8 mole_scale;
+    u8 mole_x;
+    u8 mole_y;
+    u8 padding;
+};
+static_assert(sizeof(CharInfo) == 0x58, "CharInfo has incorrect size.");
+static_assert(std::has_unique_object_representations_v<CharInfo>,
+              "All bits of CharInfo must contribute to its value.");
+
+struct CharInfoElement {
+    CharInfo char_info{};
+    Source source{};
+};
+static_assert(sizeof(CharInfoElement) == 0x5c, "CharInfoElement has incorrect size.");
+
+}; // namespace Service::Mii
diff --git a/src/core/hle/service/mii/types/core_data.cpp b/src/core/hle/service/mii/types/core_data.cpp
new file mode 100644
index 000000000..a7b12ad8d
--- /dev/null
+++ b/src/core/hle/service/mii/types/core_data.cpp
@@ -0,0 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/mii/types/core_data.h"
+
+namespace Service::Mii {} // namespace Service::Mii
diff --git a/src/core/hle/service/mii/types/core_data.h b/src/core/hle/service/mii/types/core_data.h
new file mode 100644
index 000000000..9dd7a5380
--- /dev/null
+++ b/src/core/hle/service/mii/types/core_data.h
@@ -0,0 +1,105 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/mii/mii_types.h"
+
+namespace Service::Mii {
+
+struct StoreDataBitFields {
+    union {
+        u32 word_0{};
+
+        BitField<0, 8, u32> hair_type;
+        BitField<8, 7, u32> height;
+        BitField<15, 1, u32> mole_type;
+        BitField<16, 7, u32> build;
+        BitField<23, 1, HairFlip> hair_flip;
+        BitField<24, 7, u32> hair_color;
+        BitField<31, 1, u32> type;
+    };
+
+    union {
+        u32 word_1{};
+
+        BitField<0, 7, u32> eye_color;
+        BitField<7, 1, Gender> gender;
+        BitField<8, 7, u32> eyebrow_color;
+        BitField<16, 7, u32> mouth_color;
+        BitField<24, 7, u32> beard_color;
+    };
+
+    union {
+        u32 word_2{};
+
+        BitField<0, 7, u32> glasses_color;
+        BitField<8, 6, u32> eye_type;
+        BitField<14, 2, u32> region_move;
+        BitField<16, 6, u32> mouth_type;
+        BitField<22, 2, FontRegion> font_region;
+        BitField<24, 5, u32> eye_y;
+        BitField<29, 3, u32> glasses_scale;
+    };
+
+    union {
+        u32 word_3{};
+
+        BitField<0, 5, u32> eyebrow_type;
+        BitField<5, 3, MustacheType> mustache_type;
+        BitField<8, 5, u32> nose_type;
+        BitField<13, 3, BeardType> beard_type;
+        BitField<16, 5, u32> nose_y;
+        BitField<21, 3, u32> mouth_aspect;
+        BitField<24, 5, u32> mouth_y;
+        BitField<29, 3, u32> eyebrow_aspect;
+    };
+
+    union {
+        u32 word_4{};
+
+        BitField<0, 5, u32> mustache_y;
+        BitField<5, 3, u32> eye_rotate;
+        BitField<8, 5, u32> glasses_y;
+        BitField<13, 3, u32> eye_aspect;
+        BitField<16, 5, u32> mole_x;
+        BitField<21, 3, u32> eye_scale;
+        BitField<24, 5, u32> mole_y;
+    };
+
+    union {
+        u32 word_5{};
+
+        BitField<0, 5, u32> glasses_type;
+        BitField<8, 4, u32> favorite_color;
+        BitField<12, 4, u32> faceline_type;
+        BitField<16, 4, u32> faceline_color;
+        BitField<20, 4, u32> faceline_wrinkle;
+        BitField<24, 4, u32> faceline_makeup;
+        BitField<28, 4, u32> eye_x;
+    };
+
+    union {
+        u32 word_6{};
+
+        BitField<0, 4, u32> eyebrow_scale;
+        BitField<4, 4, u32> eyebrow_rotate;
+        BitField<8, 4, u32> eyebrow_x;
+        BitField<12, 4, u32> eyebrow_y;
+        BitField<16, 4, u32> nose_scale;
+        BitField<20, 4, u32> mouth_scale;
+        BitField<24, 4, u32> mustache_scale;
+        BitField<28, 4, u32> mole_scale;
+    };
+};
+static_assert(sizeof(StoreDataBitFields) == 0x1c, "StoreDataBitFields has incorrect size.");
+static_assert(std::is_trivially_copyable_v<StoreDataBitFields>,
+              "StoreDataBitFields is not trivially copyable.");
+
+struct CoreData {
+    StoreDataBitFields data{};
+    Nickname name{};
+};
+static_assert(sizeof(CoreData) == 0x30, "CoreData has incorrect size.");
+
+}; // namespace Service::Mii
diff --git a/src/core/hle/service/mii/raw_data.cpp b/src/core/hle/service/mii/types/raw_data.cpp
similarity index 99%
rename from src/core/hle/service/mii/raw_data.cpp
rename to src/core/hle/service/mii/types/raw_data.cpp
index 070e2d199..ef678c527 100644
--- a/src/core/hle/service/mii/raw_data.cpp
+++ b/src/core/hle/service/mii/types/raw_data.cpp
@@ -1,7 +1,7 @@
 // SPDX-FileCopyrightText: Ryujinx Team and Contributors
 // SPDX-License-Identifier: MIT
 
-#include "core/hle/service/mii/raw_data.h"
+#include "core/hle/service/mii/types/raw_data.h"
 
 namespace Service::Mii::RawData {
 
diff --git a/src/core/hle/service/mii/raw_data.h b/src/core/hle/service/mii/types/raw_data.h
similarity index 98%
rename from src/core/hle/service/mii/raw_data.h
rename to src/core/hle/service/mii/types/raw_data.h
index ab84d09a1..180f49fd0 100644
--- a/src/core/hle/service/mii/raw_data.h
+++ b/src/core/hle/service/mii/types/raw_data.h
@@ -5,7 +5,7 @@
 
 #include <array>
 
-#include "core/hle/service/mii/types.h"
+#include "core/hle/service/mii/mii_types.h"
 
 namespace Service::Mii::RawData {
 
diff --git a/src/core/hle/service/mii/types/store_data.cpp b/src/core/hle/service/mii/types/store_data.cpp
new file mode 100644
index 000000000..aadc0e1af
--- /dev/null
+++ b/src/core/hle/service/mii/types/store_data.cpp
@@ -0,0 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/mii/types/store_data.h"
+
+namespace Service::Mii {} // namespace Service::Mii
diff --git a/src/core/hle/service/mii/types/store_data.h b/src/core/hle/service/mii/types/store_data.h
new file mode 100644
index 000000000..54a263b05
--- /dev/null
+++ b/src/core/hle/service/mii/types/store_data.h
@@ -0,0 +1,29 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/mii/mii_types.h"
+#include "core/hle/service/mii/types/core_data.h"
+
+namespace Service::Mii {
+
+struct StoreData {
+    StoreData();
+    StoreData(const Nickname& name, const StoreDataBitFields& bit_fields,
+              const Common::UUID& user_id);
+
+    CoreData core_data{};
+    Common::UUID create_id{};
+    u16 data_crc{};
+    u16 device_crc{};
+};
+static_assert(sizeof(StoreData) == 0x44, "StoreData has incorrect size.");
+
+struct StoreDataElement {
+    StoreData store_data{};
+    Source source{};
+};
+static_assert(sizeof(StoreDataElement) == 0x48, "StoreDataElement has incorrect size.");
+
+}; // namespace Service::Mii
diff --git a/src/core/hle/service/mii/types/ver3_store_data.cpp b/src/core/hle/service/mii/types/ver3_store_data.cpp
new file mode 100644
index 000000000..4c8904c12
--- /dev/null
+++ b/src/core/hle/service/mii/types/ver3_store_data.cpp
@@ -0,0 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/mii/types/ver3_store_data.h"
+
+namespace Service::Mii {} // namespace Service::Mii
diff --git a/src/core/hle/service/mii/types/ver3_store_data.h b/src/core/hle/service/mii/types/ver3_store_data.h
new file mode 100644
index 000000000..c3963548c
--- /dev/null
+++ b/src/core/hle/service/mii/types/ver3_store_data.h
@@ -0,0 +1,141 @@
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/mii/mii_types.h"
+#include "core/hle/service/mii/types/core_data.h"
+#include "core/hle/service/mii/types/store_data.h"
+
+namespace Service::Mii {
+
+// This is nn::mii::Ver3StoreData
+// Based on citra HLE::Applets::MiiData and PretendoNetwork.
+// https://github.com/citra-emu/citra/blob/master/src/core/hle/applets/mii_selector.h#L48
+// https://github.com/PretendoNetwork/mii-js/blob/master/mii.js#L299
+
+#pragma pack(push, 4)
+struct Ver3StoreData {
+    u8 version;
+    union {
+        u8 raw;
+
+        BitField<0, 1, u8> allow_copying;
+        BitField<1, 1, u8> profanity_flag;
+        BitField<2, 2, u8> region_lock;
+        BitField<4, 2, u8> character_set;
+    } region_information;
+    u16_be mii_id;
+    u64_be system_id;
+    u32_be specialness_and_creation_date;
+    std::array<u8, 0x6> creator_mac;
+    u16_be padding;
+    union {
+        u16 raw;
+
+        BitField<0, 1, u16> gender;
+        BitField<1, 4, u16> birth_month;
+        BitField<5, 5, u16> birth_day;
+        BitField<10, 4, u16> favorite_color;
+        BitField<14, 1, u16> favorite;
+    } mii_information;
+    std::array<char16_t, 0xA> mii_name;
+    u8 height;
+    u8 build;
+    union {
+        u8 raw;
+
+        BitField<0, 1, u8> disable_sharing;
+        BitField<1, 4, u8> face_shape;
+        BitField<5, 3, u8> skin_color;
+    } appearance_bits1;
+    union {
+        u8 raw;
+
+        BitField<0, 4, u8> wrinkles;
+        BitField<4, 4, u8> makeup;
+    } appearance_bits2;
+    u8 hair_style;
+    union {
+        u8 raw;
+
+        BitField<0, 3, u8> hair_color;
+        BitField<3, 1, u8> flip_hair;
+    } appearance_bits3;
+    union {
+        u32 raw;
+
+        BitField<0, 6, u32> eye_type;
+        BitField<6, 3, u32> eye_color;
+        BitField<9, 4, u32> eye_scale;
+        BitField<13, 3, u32> eye_vertical_stretch;
+        BitField<16, 5, u32> eye_rotation;
+        BitField<21, 4, u32> eye_spacing;
+        BitField<25, 5, u32> eye_y_position;
+    } appearance_bits4;
+    union {
+        u32 raw;
+
+        BitField<0, 5, u32> eyebrow_style;
+        BitField<5, 3, u32> eyebrow_color;
+        BitField<8, 4, u32> eyebrow_scale;
+        BitField<12, 3, u32> eyebrow_yscale;
+        BitField<16, 4, u32> eyebrow_rotation;
+        BitField<21, 4, u32> eyebrow_spacing;
+        BitField<25, 5, u32> eyebrow_y_position;
+    } appearance_bits5;
+    union {
+        u16 raw;
+
+        BitField<0, 5, u16> nose_type;
+        BitField<5, 4, u16> nose_scale;
+        BitField<9, 5, u16> nose_y_position;
+    } appearance_bits6;
+    union {
+        u16 raw;
+
+        BitField<0, 6, u16> mouth_type;
+        BitField<6, 3, u16> mouth_color;
+        BitField<9, 4, u16> mouth_scale;
+        BitField<13, 3, u16> mouth_horizontal_stretch;
+    } appearance_bits7;
+    union {
+        u8 raw;
+
+        BitField<0, 5, u8> mouth_y_position;
+        BitField<5, 3, u8> mustache_type;
+    } appearance_bits8;
+    u8 allow_copying;
+    union {
+        u16 raw;
+
+        BitField<0, 3, u16> bear_type;
+        BitField<3, 3, u16> facial_hair_color;
+        BitField<6, 4, u16> mustache_scale;
+        BitField<10, 5, u16> mustache_y_position;
+    } appearance_bits9;
+    union {
+        u16 raw;
+
+        BitField<0, 4, u16> glasses_type;
+        BitField<4, 3, u16> glasses_color;
+        BitField<7, 4, u16> glasses_scale;
+        BitField<11, 5, u16> glasses_y_position;
+    } appearance_bits10;
+    union {
+        u16 raw;
+
+        BitField<0, 1, u16> mole_enabled;
+        BitField<1, 4, u16> mole_scale;
+        BitField<5, 5, u16> mole_x_position;
+        BitField<10, 5, u16> mole_y_position;
+    } appearance_bits11;
+
+    std::array<u16_le, 0xA> author_name;
+    INSERT_PADDING_BYTES(0x2);
+    u16_be crc;
+};
+static_assert(sizeof(Ver3StoreData) == 0x60, "Ver3StoreData is an invalid size");
+#pragma pack(pop)
+
+}; // namespace Service::Mii
diff --git a/src/core/hle/service/nfc/common/device.cpp b/src/core/hle/service/nfc/common/device.cpp
index 5df40f9a0..44ac8cc71 100644
--- a/src/core/hle/service/nfc/common/device.cpp
+++ b/src/core/hle/service/nfc/common/device.cpp
@@ -28,7 +28,6 @@
 #include "core/hle/kernel/k_event.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/mii/mii_manager.h"
-#include "core/hle/service/mii/types.h"
 #include "core/hle/service/nfc/common/amiibo_crypto.h"
 #include "core/hle/service/nfc/common/device.h"
 #include "core/hle/service/nfc/mifare_result.h"
diff --git a/src/core/hle/service/nfp/nfp_types.h b/src/core/hle/service/nfp/nfp_types.h
index aed12a7f8..adcaa8e84 100644
--- a/src/core/hle/service/nfp/nfp_types.h
+++ b/src/core/hle/service/nfp/nfp_types.h
@@ -6,7 +6,8 @@
 #include <array>
 
 #include "common/swap.h"
-#include "core/hle/service/mii/types.h"
+#include "core/hle/service/mii/types/char_info.h"
+#include "core/hle/service/mii/types/ver3_store_data.h"
 #include "core/hle/service/nfc/nfc_types.h"
 
 namespace Service::NFP {
@@ -322,7 +323,7 @@ static_assert(sizeof(RegisterInfo) == 0x100, "RegisterInfo is an invalid size");
 
 // This is nn::nfp::RegisterInfoPrivate
 struct RegisterInfoPrivate {
-    Service::Mii::MiiStoreData mii_store_data;
+    Service::Mii::StoreData mii_store_data;
     WriteDate creation_date;
     AmiiboName amiibo_name;
     u8 font_region;