diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 6720097..5860e35 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -6,6 +6,7 @@ set(SRC_COMMON
   sdlmain.cpp
   fileio.cpp
   utfsjis.cpp
+  texthook.cpp
   sys/ags.cpp
   sys/ags_cursor.cpp
   sys/ags_draw.cpp
diff --git a/src/sys/ags_text.cpp b/src/sys/ags_text.cpp
index 008bec2..6a30525 100644
--- a/src/sys/ags_text.cpp
+++ b/src/sys/ags_text.cpp
@@ -7,6 +7,7 @@
 #include <string.h>
 #include "ags.h"
 #include "utfsjis.h"
+#include "texthook.h"
 
 static bool antialias = false;
 
@@ -52,6 +53,9 @@ void AGS::draw_text(char string[])
 		if((0xeb9f <= code && code <= 0xebfc) || (0xec40 <= code && code <= 0xec9e)) {
 			draw_gaiji(screen, dest_x, dest_y, code, font_size, font_color);
 		} else {
+			if (!draw_menu)
+				texthook_character(nact->get_scenario_page(), sjis_to_unicode(code));
+
 			if (antialias)
 				draw_char_antialias(screen, dest_x, dest_y, code, font_size, font_color, antialias_cache);
 			else
diff --git a/src/sys/nact.h b/src/sys/nact.h
index 794cb28..e2c15c2 100644
--- a/src/sys/nact.h
+++ b/src/sys/nact.h
@@ -254,6 +254,8 @@ public:
 
 	// デバッグログ
 	void output_console(char log[]);
+
+	int get_scenario_page() const { return scenario_page; }
 };
 
 #endif
diff --git a/src/sys/nact_input.cpp b/src/sys/nact_input.cpp
index 7e9b3d7..d3a7a03 100644
--- a/src/sys/nact_input.cpp
+++ b/src/sys/nact_input.cpp
@@ -6,6 +6,7 @@
 
 #include "nact.h"
 #include "ags.h"
+#include "texthook.h"
 
 static int mousex, mousey;
 
@@ -37,6 +38,8 @@ uint8 NACT::get_key()
 {
 	uint8 val = 0;
 
+	texthook_keywait();
+
 	if (pump_events(ags->screen_height))
 		terminate = true;
 
diff --git a/src/sys/nact_sys3.cpp b/src/sys/nact_sys3.cpp
index ef02c2a..a489fc0 100644
--- a/src/sys/nact_sys3.cpp
+++ b/src/sys/nact_sys3.cpp
@@ -11,6 +11,7 @@
 #include "mako.h"
 #include "crc32.h"
 #include "../fileio.h"
+#include "texthook.h"
 
 void NACT::cmd_calc()
 {
@@ -423,6 +424,8 @@ void NACT::cmd_open_obj(int verb)
 
 void NACT::cmd_a()
 {
+	texthook_nextpage();
+
 #if defined(_DEBUG_CONSOLE)
 	char log[128];
 	sprintf_s(log, 128, "A\n");
@@ -1139,6 +1142,8 @@ void NACT::cmd_q()
 
 void NACT::cmd_r()
 {
+	texthook_newline();
+
 #if defined(_DEBUG_CONSOLE)
 	char log[128];
 	sprintf_s(log, 128, "R\n");
diff --git a/src/texthook.cpp b/src/texthook.cpp
new file mode 100644
index 0000000..a76e5a3
--- /dev/null
+++ b/src/texthook.cpp
@@ -0,0 +1,77 @@
+#include <stdio.h>
+#include "texthook.h"
+
+#ifdef __EMSCRIPTEN__  // ----------------------------------------------
+#include <emscripten.h>
+
+void texthook_character(int page, int character) {
+	EM_ASM_({ xsystem35.texthook.message(String.fromCharCode($0), $1); },
+			character, page);
+}
+
+EM_JS(void, texthook_newline, (void), {
+	xsystem35.texthook.newline();
+});
+
+EM_JS(void, texthook_nextpage, (void), {
+	xsystem35.texthook.nextpage();
+});
+
+EM_JS(void, texthook_keywait, (void), {
+	xsystem35.texthook.keywait();
+});
+
+#elif defined(TEXTHOOK_PRINT)  // --------------------------------------
+
+static int newlines = 0;
+
+void texthook_character(int page, int c) {
+	if (newlines)
+		printf("%d:", page);
+	newlines = 0;
+
+	if (c <= 0x7f) {
+		putchar(c);
+	} else if (c <= 0x7ff) {
+		putchar(0xc0 | c >> 6);
+		putchar(0x80 | (c & 0x3f));
+	} else {
+		putchar(0xe0 | c >> 12);
+		putchar(0x80 | (c >> 6 & 0x3f));
+		putchar(0x80 | (c & 0x3f));
+	}
+}
+
+void texthook_newline(void) {
+	if (newlines < 2) {
+		putchar('\n');
+		newlines++;
+	}
+}
+
+void texthook_nextpage(void) {
+	while (newlines < 2) {
+		putchar('\n');
+		newlines++;
+	}
+}
+
+void texthook_keywait(void) {
+	texthook_newline();
+}
+
+#else  // --------------------------------------------------------------
+
+void texthook_character(int page, int c) {
+}
+
+void texthook_newline(void) {
+}
+
+void texthook_nextpage(void) {
+}
+
+void texthook_keywait(void) {
+}
+
+#endif  // -------------------------------------------------------------
diff --git a/src/texthook.h b/src/texthook.h
new file mode 100644
index 0000000..aba722f
--- /dev/null
+++ b/src/texthook.h
@@ -0,0 +1,13 @@
+#ifndef _TEXTHOOK_H_
+#define _TEXTHOOK_H_
+
+extern "C" {
+
+void texthook_character(int page, int character);
+void texthook_newline(void);
+void texthook_nextpage(void);
+void texthook_keywait(void);
+
+}
+
+#endif /* _TEXTHOOK_H_ */