diff --git a/.clang-format b/.clang-format
index ef86260..08eb890 100644
--- a/.clang-format
+++ b/.clang-format
@@ -1,10 +1,10 @@
 ---
-Language:        Cpp
+Language: Cpp
 AccessModifierOffset: -4
 AlignAfterOpenBracket: Align
 AlignConsecutiveAssignments: false
 AlignConsecutiveDeclarations: false
-AlignOperands:   true
+AlignOperands: true
 AlignTrailingComments: true
 AllowAllParametersOfDeclarationOnNextLine: true
 AllowShortBlocksOnASingleLine: Never
@@ -22,28 +22,30 @@ BreakBeforeBinaryOperators: None
 BreakBeforeBraces: Attach
 BreakBeforeTernaryOperators: false
 BreakConstructorInitializersBeforeComma: false
-ColumnLimit:     100
-CommentPragmas:  '^ (IWYU pragma:|NOLINT)'
+ColumnLimit: 100
+CommentPragmas: '^ (IWYU pragma:|NOLINT)'
 ConstructorInitializerAllOnOneLineOrOnePerLine: false
 ConstructorInitializerIndentWidth: 4
 ContinuationIndentWidth: 4
 Cpp11BracedListStyle: true
 DerivePointerAlignment: false
-DisableFormat:   false
-ForEachMacros:   []
+DisableFormat: false
+ForEachMacros: [ ]
 IncludeCategories:
-  - Regex:           '^<[Ww]indows\.h>$'
-    Priority:        1
-  - Regex:           '^<'
-    Priority:        2
-  - Regex:           '^"'
-    Priority:        3
+  - Regex: '^<[Ww]indows\.h>$'
+    Priority: 1
+  - Regex: '^<'
+    Priority: 2
+  - Regex: '^"'
+    Priority: 3
 IndentCaseLabels: false
-IndentWidth:     4
+IndentWidth: 4
 IndentWrappedFunctionNames: false
+InsertNewlineAtEOF: true
 KeepEmptyLinesAtTheStartOfBlocks: false
+LineEnding: LF
 MacroBlockBegin: ''
-MacroBlockEnd:   ''
+MacroBlockEnd: ''
 MaxEmptyLinesToKeep: 1
 NamespaceIndentation: None
 ObjCBlockIndentWidth: 4
@@ -56,19 +58,23 @@ PenaltyBreakString: 1000
 PenaltyExcessCharacter: 1000000
 PenaltyReturnTypeOnItsOwnLine: 60
 PointerAlignment: Left
-ReflowComments:  true
-SortIncludes:    true
+QualifierAlignment: Left
+ReflowComments: true
+RemoveBracesLLVM: true
+SeparateDefinitionBlocks: Always
+SortIncludes: true
 SpaceAfterCStyleCast: false
 SpaceBeforeAssignmentOperators: true
 SpaceBeforeParens: ControlStatements
 SpaceInEmptyParentheses: false
 SpacesBeforeTrailingComments: 2
-SpacesInAngles:  false
+SpacesInAngles: false
 SpacesInContainerLiterals: true
 SpacesInCStyleCastParentheses: false
 SpacesInParentheses: false
 SpacesInSquareBrackets: false
 Standard: c++17
-TabWidth:        4
-UseTab:          Never
+TabWidth: 4
+UseTab: Never
+WhitespaceSensitiveMacros: [ "SEAD_ENUM", "SEAD_ENUM_EX", "SEAD_ENUM_EX_VALUES" ]
 ...
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c0458ae..433a5d4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,6 +2,9 @@ project(eui CXX ASM)
 
 add_library(eui OBJECT
 	include/euiControlBase.h
+	include/message/euiScalableFontMgr.h
+	include/message/euiFontMgr.h
+	include/sys/euiSharcArchive.h
 
 	src/euiControlBase.cpp
 )
@@ -11,7 +14,10 @@ target_compile_options(eui PRIVATE -fno-strict-aliasing)
 target_compile_options(eui PRIVATE -Wno-invalid-offsetof)
 target_include_directories(eui PUBLIC include/)
 
+if(NOT TARGET sead)
+  add_subdirectory(../sead)
+endif()
 if(NOT TARGET agl)
   add_subdirectory(../agl)
 endif()
-target_link_libraries(eui PUBLIC agl)
+target_link_libraries(eui PUBLIC agl sead)
diff --git a/include/message/euiFontMgr.h b/include/message/euiFontMgr.h
new file mode 100644
index 0000000..5c9aeaf
--- /dev/null
+++ b/include/message/euiFontMgr.h
@@ -0,0 +1,54 @@
+#pragma once
+
+#include <basis/seadTypes.h>
+#include <container/seadBuffer.h>
+#include <prim/seadSafeString.h>
+
+#include "sys/euiSharcArchive.h"
+
+namespace sead {
+class Heap;
+}
+
+namespace nn::font {
+class Font;
+class ResFont;
+}  // namespace nn::font
+
+namespace eui {
+class ScalableFontMgr;
+
+class FontMgr {
+    SEAD_SINGLETON_DISPOSER(FontMgr)
+public:
+    FontMgr();
+
+    void initialize(sead::Heap*, void*, u32, const sead::Buffer<const char*>&,
+                    eui::ScalableFontMgr*);
+    void finalize();
+    void registFont(nn::ui2d::ResourceAccessor*);
+    const nn::font::Font* tryGetFont(const sead::SafeString&) const;
+    nn::font::Font* tryGetFont(const sead::SafeString&);
+    const nn::font::Font* getFont(const sead::SafeString&) const;
+    nn::font::Font* getFont(const sead::SafeString&);
+    const nn::font::Font* getFontByMessageIndex(u32) const;
+    nn::font::Font* getFontByMessageIndex(u32);
+    void setRubyFont(const sead::SafeString&);
+    void setRubyFont(const nn::font::Font*);
+    bool isScalableFont(const sead::SafeString&) const;
+    void findFontName(sead::BufferedSafeString*, const nn::font::Font*) const;
+
+    ScalableFontMgr* getScalableFontMgr() const { return mScalableFontMrg; }
+
+private:
+    char filler[0x8];
+    SharcArchive mSharcArchive;
+    sead::PtrArray<nn::font::ResFont> _30;
+    sead::PtrArray<nn::font::Font> _40;
+    nn::font::Font* mRubyFont;
+    ScalableFontMgr* mScalableFontMrg;
+};
+
+static_assert(sizeof(FontMgr) == 0x60);
+
+}  // namespace eui
diff --git a/include/message/euiScalableFontMgr.h b/include/message/euiScalableFontMgr.h
new file mode 100644
index 0000000..be316f4
--- /dev/null
+++ b/include/message/euiScalableFontMgr.h
@@ -0,0 +1,60 @@
+#pragma once
+
+#include <basis/seadTypes.h>
+#include <prim/seadSafeString.h>
+#include <thread/seadThread.h>
+
+namespace nn::font {
+class ScalableFont;
+class TextureCache;
+}  // namespace nn::font
+
+namespace nn::ui2d {
+class ResourceAccessor;
+}
+
+namespace eui {
+class FontMgr;
+class ScalableFontTextBoxEx;
+
+class ScalableFontMgr {
+    SEAD_SINGLETON_DISPOSER(ScalableFontMgr)
+public:
+    struct InitializeArg;
+
+    ScalableFontMgr();
+
+    void initialize(const InitializeArg&);
+    void update();
+    void registFont(nn::ui2d::ResourceAccessor*);
+    const nn::font::ScalableFont* getFont(const sead::SafeString&) const;
+    nn::font::ScalableFont* getFont(const sead::SafeString&);
+    bool isGlyphsReady(const char16*, u32, const nn::font::ScalableFont*, const eui::FontMgr*);
+    bool registerGlyphs(const char16*, u32, const nn::font::ScalableFont*, const eui::FontMgr*,
+                        s32);
+    const char* findFontName(const nn::font::ScalableFont*) const;
+    void reserveRegisterGlyphs(eui::ScalableFontTextBoxEx*);
+    void dumpTextureCacheGlyphTreeMap() const;
+    s32 getTextureCacheNoSpaceError() const;
+    void clearNoSpaceError();
+
+    bool is_55() const { return _55; }
+
+private:
+    bool registerGlyphs_(const char16*, u32, const nn::font::ScalableFont*, const eui::FontMgr*,
+                         s32, bool);
+    bool isNeedPlot_(char16, u32, u32);
+
+    char filler[0x18];
+    nn::font::TextureCache* _38;
+    sead::Thread* _40;
+    ScalableFontTextBoxEx* _48;
+    s32 _50;
+    bool _54;
+    bool _55;
+    bool _56;
+};
+
+static_assert(sizeof(ScalableFontMgr) == 0x58);
+
+}  // namespace eui
diff --git a/include/sys/euiSharcArchive.h b/include/sys/euiSharcArchive.h
new file mode 100644
index 0000000..b280fa9
--- /dev/null
+++ b/include/sys/euiSharcArchive.h
@@ -0,0 +1,27 @@
+#pragma once
+
+#include <basis/seadTypes.h>
+
+namespace sead {
+class Heap;
+}
+
+namespace eui {
+
+class SharcArchive {
+public:
+    class FileReader;
+
+    SharcArchive();
+
+    void finalize();
+    void initialize(sead::Heap*, void*, u32);
+    void startFileReader(eui::SharcArchive::FileReader*) const;
+
+private:
+    char _filler[0x8];
+};
+
+static_assert(sizeof(SharcArchive) == 0x8);
+
+}  // namespace eui