diff --git a/src/core/libraries/font/font.cpp b/src/core/libraries/font/font.cpp
index ef4ea7a12..2b1c43505 100644
--- a/src/core/libraries/font/font.cpp
+++ b/src/core/libraries/font/font.cpp
@@ -757,7 +757,7 @@ void PS4_SYSV_ABI sceFontRenderSurfaceInit(OrbisFontRenderSurface* renderSurface
 
         // Initialize unknown fields (likely reserved or flags)
         renderSurface->unkn_0xd = 0;
-        renderSurface->unkn_0xe = 0;
+        renderSurface->styleFlag = 0;
         renderSurface->unkn_0xf = 0;
 
         // Ensure width and height are non-negative
@@ -814,9 +814,26 @@ void PS4_SYSV_ABI sceFontRenderSurfaceSetScissor(OrbisFontRenderSurface* renderS
     }
 }
 
-s32 PS4_SYSV_ABI sceFontRenderSurfaceSetStyleFrame() {
-    LOG_ERROR(Lib_Font, "(STUBBED) called");
-    return ORBIS_OK;
+s32 PS4_SYSV_ABI sceFontRenderSurfaceSetStyleFrame(OrbisFontRenderSurface* renderSurface,
+                                                   OrbisFontStyleFrame* styleFrame) {
+    if (!renderSurface) {
+        return ORBIS_FONT_ERROR_INVALID_PARAMETER;
+    }
+
+    if (!styleFrame) {
+        renderSurface->styleFlag &= 0xFE; // Clear style flag
+    } else {
+        // Validate magic number
+        if (styleFrame->magic != 0xF09) {
+            return ORBIS_FONT_ERROR_INVALID_PARAMETER;
+        }
+
+        renderSurface->styleFlag |= 1; // Set style flag
+    }
+
+    // Assign style frame pointer
+    renderSurface->unkn_28[0] = styleFrame;
+    *(uint32_t*)(renderSurface->unkn_28 + 1) = 0; // Reset related field
 }
 
 s32 PS4_SYSV_ABI sceFontSetEffectSlant() {
@@ -904,8 +921,29 @@ s32 PS4_SYSV_ABI sceFontStringRefersTextCharacters() {
     return ORBIS_OK;
 }
 
-s32 PS4_SYSV_ABI sceFontStyleFrameGetEffectSlant() {
-    LOG_ERROR(Lib_Font, "(STUBBED) called");
+s32 PS4_SYSV_ABI sceFontStyleFrameGetEffectSlant(OrbisFontStyleFrame* styleFrame,
+                                                 float* slantRatio) {
+    if (!styleFrame) {
+        printf("[ERROR] Style frame is NULL.\n");
+        return ORBIS_FONT_ERROR_INVALID_PARAMETER;
+    }
+
+    // Validate the magic number
+    if (styleFrame->magic != 0xF09) {
+        return ORBIS_FONT_ERROR_INVALID_PARAMETER;
+    }
+
+    // Check if the slant effect is enabled (bit 1 in flags)
+    if (!(styleFrame->flags & 0x02)) {
+        return ORBIS_FONT_ERROR_UNSET_PARAMETER;
+    }
+
+    if (!slantRatio) {
+        return ORBIS_FONT_ERROR_INVALID_PARAMETER;
+    }
+
+    // Retrieve slant ratio
+    *slantRatio = styleFrame->slantRatio;
     return ORBIS_OK;
 }
 
diff --git a/src/core/libraries/font/font.h b/src/core/libraries/font/font.h
index c3bae6c51..e62dc9d78 100644
--- a/src/core/libraries/font/font.h
+++ b/src/core/libraries/font/font.h
@@ -29,14 +29,21 @@ struct OrbisFontRenderSurface {
     s32 widthByte;
     s8 pixelSizeByte;
     u8 unkn_0xd;
-    u8 unkn_0xe;
+    u8 styleFlag;
     u8 unkn_0xf;
     s32 width, height;
     u32 sc_x0;
     u32 sc_y0;
     u32 sc_x1;
     u32 sc_y1;
-    u32 unkn_28[22];
+    void* unkn_28[3];
+};
+
+struct OrbisFontStyleFrame {
+    u16 magic; // Expected to be 0xF09
+    u16 flags;
+    //
+    float slantRatio; //0x24
 };
 
 s32 PS4_SYSV_ABI sceFontAttachDeviceCacheBuffer();
@@ -186,7 +193,8 @@ void PS4_SYSV_ABI sceFontRenderSurfaceInit(OrbisFontRenderSurface* renderSurface
                                            int heightPixel);
 void PS4_SYSV_ABI sceFontRenderSurfaceSetScissor(OrbisFontRenderSurface* renderSurface, int x0,
                                                  int y0, int w, int h);
-s32 PS4_SYSV_ABI sceFontRenderSurfaceSetStyleFrame();
+s32 PS4_SYSV_ABI sceFontRenderSurfaceSetStyleFrame(OrbisFontRenderSurface* renderSurface,
+                                                   OrbisFontStyleFrame* styleFrame);
 s32 PS4_SYSV_ABI sceFontSetEffectSlant();
 s32 PS4_SYSV_ABI sceFontSetEffectWeight();
 s32 PS4_SYSV_ABI sceFontSetFontsOpenMode();
@@ -204,7 +212,8 @@ s32 PS4_SYSV_ABI sceFontStringGetTerminateOrder();
 s32 PS4_SYSV_ABI sceFontStringGetWritingForm();
 s32 PS4_SYSV_ABI sceFontStringRefersRenderCharacters();
 s32 PS4_SYSV_ABI sceFontStringRefersTextCharacters();
-s32 PS4_SYSV_ABI sceFontStyleFrameGetEffectSlant();
+s32 PS4_SYSV_ABI sceFontStyleFrameGetEffectSlant(OrbisFontStyleFrame* styleFrame,
+                                                 float* slantRatio);
 s32 PS4_SYSV_ABI sceFontStyleFrameGetEffectWeight();
 s32 PS4_SYSV_ABI sceFontStyleFrameGetResolutionDpi();
 s32 PS4_SYSV_ABI sceFontStyleFrameGetScalePixel();