diff --git a/src/ags.c b/src/ags.c
index 2250bbf..63bef36 100644
--- a/src/ags.c
+++ b/src/ags.c
@@ -383,16 +383,14 @@ void ags_delRegion(void *region) {
 	sdl_delRegion(region);
 }
 
-int ags_drawString(int x, int y, const char *src, int col) {
-	int w;
-	
-	if (!check_param_xy(&x, &y)) return 0;
+MyRectangle ags_drawString(int x, int y, const char *src, int col) {
+	if (!check_param_xy(&x, &y)) return (MyRectangle){};
 	
 	char *utf8 = toUTF8(src);
-	w = sdl_drawString(x, y, utf8, col);
+	SDL_Rect r = sdl_drawString(x, y, utf8, col);
 	free(utf8);
 
-	return w;
+	return (MyRectangle){r.x, r.y, r.w, r.h};
 }
 
 agsurface_t *ags_drawStringToSurface(const char *str) {
diff --git a/src/ags.h b/src/ags.h
index b346101..c79dfb2 100644
--- a/src/ags.h
+++ b/src/ags.h
@@ -184,7 +184,7 @@ extern void ags_putRegion(void *region, int x, int y);
 extern void ags_copyRegion(void *region, int sx, int sy, int w,int h,int dx,int dy);
 extern void ags_delRegion(void *region);
 
-extern int  ags_drawString(int x, int y, const char *src, int col);
+extern MyRectangle ags_drawString(int x, int y, const char *src, int col);
 extern void ags_drawCg8bit(cgdata *cg, int x, int y); 
 extern void ags_drawCg16bit(cgdata *cg, int x, int y); 
 
diff --git a/src/font.c b/src/font.c
index 7e8f1a9..5e53bbb 100644
--- a/src/font.c
+++ b/src/font.c
@@ -119,6 +119,8 @@ static void sdl_drawAntiAlias_8bpp(int dstx, int dsty, SDL_Surface *src, unsigne
 	memset(cache, 0, 256);
 
 	for (int y = 0; y < src->h && dsty + y < sdl_dib->h; y++) {
+		if (dsty + y < 0)
+			continue;
 		BYTE *sp = (BYTE*)src->pixels + y * src->pitch;
 		BYTE *dp = (BYTE*)sdl_dib->pixels + (dsty + y) * sdl_dib->pitch + dstx;
 		for (int x = 0; x < src->w && dstx + x < sdl_dib->w; x++) {
@@ -149,15 +151,15 @@ static void sdl_drawAntiAlias_8bpp(int dstx, int dsty, SDL_Surface *src, unsigne
 	SDL_UnlockSurface(sdl_dib);
 }
 
-int font_draw_glyph(int x, int y, const char *str_utf8, int cl) {
+SDL_Rect font_draw_glyph(int x, int y, const char *str_utf8, int cl) {
 	SDL_Surface *fs;
-	SDL_Rect r_src, r_dst;
+	SDL_Rect r_src, r_dst = {};
 	int w, h;
 	
 	if (!*str_utf8)
-		return 0;
+		return r_dst;
 	if (!fontset)
-		return 0;
+		return r_dst;
 	
 	if (this.antialiase_on) {
 		fs = TTF_RenderUTF8_Blended(fontset->id, str_utf8, sdl_col[cl]);
@@ -166,22 +168,27 @@ int font_draw_glyph(int x, int y, const char *str_utf8, int cl) {
 	}
 	if (!fs) {
 		WARNING("Text rendering failed: %s\n", TTF_GetError());
-		return 0;
+		return r_dst;
 	}
 	
 	TTF_SizeUTF8(fontset->id, str_utf8, &w, &h);
-	y = max(0, y - (TTF_FontAscent(fontset->id) - fontset->size * 0.9));
+	// Center vertically to the box.
+	y -= (TTF_FontHeight(fontset->id) - fontset->size) / 2;
+	setRect(r_dst, x, y, w, h);
 	
 	if (sdl_dib->format->BitsPerPixel == 8 && this.antialiase_on) {
 		sdl_drawAntiAlias_8bpp(x, y, fs, cl);
 	} else {
 		setRect(r_src, 0, 0, w, h);
-		setRect(r_dst, x, y, w, h);
 		SDL_BlitSurface(fs, &r_src, sdl_dib, &r_dst);
 	}
 
 	SDL_FreeSurface(fs);
-	return w;
+	if (r_dst.y < 0) {
+		r_dst.h += r_dst.y;
+		r_dst.y = 0;
+	}
+	return r_dst;
 }
 
 void font_init(void) {
diff --git a/src/font.h b/src/font.h
index 6407c66..6c44df0 100644
--- a/src/font.h
+++ b/src/font.h
@@ -37,7 +37,7 @@ extern void font_set_antialias(boolean enable);
 extern boolean font_get_antialias(void);
 extern void font_select(int type, int size);
 extern struct SDL_Surface *font_get_glyph(const char *str_utf8);
-extern int font_draw_glyph(int x, int y, const char *str_utf8, int col);
+extern SDL_Rect font_draw_glyph(int x, int y, const char *str_utf8, int col);
 
 #ifdef __EMSCRIPTEN__
 extern int load_mincho_font(void);
diff --git a/src/message.c b/src/message.c
index 303df23..94997fd 100644
--- a/src/message.c
+++ b/src/message.c
@@ -111,7 +111,6 @@ void msg_setStringDecorationType(int type) {
 }
 
 void msg_putMessage(const char *m) {
-	int         w;
 	MyRectangle adj;
 	
 	if (nextLineIsAfterKaigyou) {
@@ -176,18 +175,21 @@ void msg_putMessage(const char *m) {
 		break;
 	}
 	
-	w = ags_drawString(msgcur.x, msgcur.y, m, msg.MsgFontColor);
+	MyRectangle drawn = ags_drawString(msgcur.x, msgcur.y, m, msg.MsgFontColor);
+	msgcur.x += drawn.width;
+	drawn.x += adj.x;
+	drawn.y += adj.y;
+	drawn.width += adj.width;
+	drawn.height += adj.height;
 
 	if (nact->messagewait_enable && !nact->messagewait_cancelled && !msgskip_isSkipping()) {
 		int x;
-		for (x = 0; x < w + adj.width; x+=16) {
-			ags_updateArea(msgcur.x + adj.x + x, msgcur.y + adj.y,
-				       16, msg.MsgFontSize + adj.height);
+		for (x = 0; x < drawn.width; x+=16) {
+			ags_updateArea(drawn.x + x, drawn.y, 16, drawn.height);
 			if (nact->messagewait_cancel) {
 				if (sys_getInputInfo()) {
 					nact->messagewait_cancelled = TRUE;
-					ags_updateArea(msgcur.x + adj.x, msgcur.y + adj.y,
-						       w + adj.width, msg.MsgFontSize + adj.height);
+					ags_updateArea(drawn.x, drawn.y, drawn.width, drawn.height);
 					break;
 				}
 				sdl_sleep(nact->messagewait_time * 10);
@@ -195,10 +197,8 @@ void msg_putMessage(const char *m) {
 			nact->callback();
 		}
 	} else {
-		ags_updateArea(msgcur.x + adj.x, msgcur.y + adj.y,
-			       w + adj.width, msg.MsgFontSize + adj.height);
+		ags_updateArea(drawn.x, drawn.y, drawn.width, drawn.height);
 	}
-	msgcur.x += w;
 }
 
 void msg_nextLine() {
@@ -327,18 +327,15 @@ void msg_getMessageLocation(MyPoint *loc) {
 }
 
 void msg_hitAnyKey() {
-	int w;
 	const char *prompt[CHARACTER_ENCODING_MAX + 1] = {
 		[SHIFT_JIS] = "\x81\xa5",
 		[UTF8] = "▼",
 	};
 	
-	w = ags_drawString(msg.win->x + msg.win->width - msg.MsgFontSize,
-			   msg.win->y + msg.win->height - msg.MsgFontSize,
-			   prompt[nact->encoding], msg.HitAnyKeyMsgColor);
-	ags_updateArea(msg.win->x + msg.win->width  - msg.MsgFontSize,
-		       msg.win->y + msg.win->height - msg.MsgFontSize,
-		       w, msg.MsgFontSize);
+	MyRectangle r = ags_drawString(msg.win->x + msg.win->width - msg.MsgFontSize,
+								   msg.win->y + msg.win->height - msg.MsgFontSize,
+								   prompt[nact->encoding], msg.HitAnyKeyMsgColor);
+	ags_updateArea(r.x, r.y, r.width, r.height);
 }
 
 static void drawLineFrame(Bcom_WindowInfo *i) {
diff --git a/src/sdl_core.h b/src/sdl_core.h
index 2a1f555..8d744f8 100644
--- a/src/sdl_core.h
+++ b/src/sdl_core.h
@@ -56,7 +56,7 @@ extern void sdl_setPalette(Palette256 *pal, int src, int cnt);
 extern void sdl_drawRectangle(int x, int y, int w, int h, int cl);
 extern void sdl_fillRectangle(int x, int y, int w, int h, unsigned long c);
 extern void sdl_drawLine(int x1, int y1, int x2, int y2, unsigned long col);
-extern int  sdl_drawString(int x, int y, const char *str_utf8, unsigned long col);
+extern SDL_Rect sdl_drawString(int x, int y, const char *str_utf8, unsigned long col);
 extern void sdl_copyArea(int sx,int sy, int w, int h, int dx, int dy);
 extern void sdl_drawTT(int x,int y,int w,int h,const char *bitmap,int ww, boolean antialiased);
 extern void sdl_copyAreaSP(int sx, int sy, int w, int h, int dx, int dy, int sp);
diff --git a/src/sdl_draw.c b/src/sdl_draw.c
index 33a8526..e87ed9b 100644
--- a/src/sdl_draw.c
+++ b/src/sdl_draw.c
@@ -310,7 +310,7 @@ int sdl_nearest_color(int r, int g, int b) {
 	return col;
 }
 
-int sdl_drawString(int x, int y, const char *str_utf8, unsigned long col) {
+SDL_Rect sdl_drawString(int x, int y, const char *str_utf8, unsigned long col) {
 	sdl_pal_check();
 	return font_draw_glyph(x, y, str_utf8, col);
 }
diff --git a/src/sdl_input.c b/src/sdl_input.c
index 06b9eaa..0a8ea9e 100644
--- a/src/sdl_input.c
+++ b/src/sdl_input.c
@@ -53,13 +53,13 @@ static void redraw() {
 	};
 
 	if (*input->text) {
-		int w = sdl_drawString(r.x, r.y, input->text, fgcolor);
+		int w = sdl_drawString(r.x, r.y, input->text, fgcolor).w;
 		r.x += w;
 		r.w -= w;
 	}
 
 	if (*input->composingText) {
-		int w = sdl_drawString(r.x, r.y, input->composingText, fgcolor);
+		int w = sdl_drawString(r.x, r.y, input->composingText, fgcolor).w;
 		ags_fillRectangle(r.x, r.y + r.h, w, 2, fgcolor);  // underline
 	}
 
diff --git a/src/selection.c b/src/selection.c
index 928c096..eae2db6 100644
--- a/src/selection.c
+++ b/src/selection.c
@@ -276,7 +276,7 @@ static void init_selwindow() {
 	ags_setFont(FONT_GOTHIC, sel.MsgFontSize);
 	for (i = 0; i < regnum; i++) {
 		DEBUG_MESSAGE("%d:%s\n", i +1, elm[i]);
-		ags_drawString(r.x +2, r.y + i * (sel.MsgFontSize +2) +2, elm[i], sel.MsgFontColor);
+		ags_drawString(r.x +2, r.y + i * (sel.MsgFontSize +2) +1, elm[i], sel.MsgFontColor);
 	}
 	ags_updateArea(saveArea.x, saveArea.y, saveArea.width, saveArea.height);
 	
@@ -364,7 +364,7 @@ static void encloseElement(int sw, int no) {
 				lineEncloseElement(r, sel.WinBackgroundColor, FALSE); break;
 			case 2:
 				ags_fillRectangle(r->x, r->y, r->width +2, r->height +2, sel.WinBackgroundColor);
-				ags_drawString(r->x +2, r->y +2, elm[no], sel.MsgFontColor);
+				ags_drawString(r->x +2, r->y +1, elm[no], sel.MsgFontColor);
 				ags_updateArea(r->x, r->y, r->width +2, r->height +2);
 				break;
 			default:
@@ -383,7 +383,7 @@ static void encloseElement(int sw, int no) {
 			lineEncloseElement(r, 255, FALSE); break;
 		case 2:
 			ags_fillRectangle(r->x, r->y, r->width +2, r->height +2, sel.MsgFontColor);
-			ags_drawString(r->x +2, r->y +2, elm[no], sel.WinBackgroundColor);
+			ags_drawString(r->x +2, r->y +1, elm[no], sel.WinBackgroundColor);
 			ags_updateArea(r->x, r->y, r->width +2, r->height +2);
 			break;
 		default: