diff --git a/28_day/Makefile b/28_day/Makefile
index 046fcf9..ae13e61 100644
--- a/28_day/Makefile
+++ b/28_day/Makefile
@@ -21,7 +21,7 @@ haribote.img : haribote/ipl10.bin haribote/haribote.sys Makefile \
 		lines/lines.hrb walk/walk.hrb noodle/noodle.hrb \
 		beepdown/beepdown.hrb color/color.hrb color2/color2.hrb \
 		sosu/sosu.hrb sosu2/sosu2.hrb sosu3/sosu3.hrb \
-		typeipl/typeipl.hrb type/type.hrb
+		typeipl/typeipl.hrb type/type.hrb iroha/iroha.hrb
 	$(EDIMG)   imgin:../z_tools/fdimg0at.tek \
 		wbinimg src:haribote/ipl10.bin len:512 from:0 to:0 \
 		copy from:haribote/haribote.sys to:@: \
@@ -48,6 +48,8 @@ haribote.img : haribote/ipl10.bin haribote/haribote.sys Makefile \
 		copy from:sosu3/sosu3.hrb to:@: \
 		copy from:typeipl/typeipl.hrb to:@: \
 		copy from:type/type.hrb to:@: \
+		copy from:iroha/iroha.hrb to:@: \
+		copy from:nihongo/nihongo.fnt to:@: \
 		imgout:haribote.img
 
 #命令
@@ -85,6 +87,7 @@ full :
 	$(MAKE) -C sosu3
 	$(MAKE) -C typeipl
 	$(MAKE) -C type
+	$(MAKE) -C iroha
 	$(MAKE) haribote.img
 
 run_full :
@@ -131,6 +134,7 @@ clean_full :
 	$(MAKE) -C sosu3		clean
 	$(MAKE) -C typeipl		clean
 	$(MAKE) -C type			clean
+	$(MAKE) -C iroha		clean
 
 src_only_full :
 	$(MAKE) -C haribote		src_only
@@ -154,8 +158,9 @@ src_only_full :
 	$(MAKE) -C sosu			src_only
 	$(MAKE) -C sosu2		src_only
 	$(MAKE) -C sosu3		src_only
-	$(MAKE) -C typeipl	src_only
+	$(MAKE) -C typeipl		src_only
 	$(MAKE) -C type			src_only
+	$(MAKE) -C iroha		src_only
 	-$(DEL) haribote.img
 
 refresh :
diff --git a/28_day/haribote/bootpack.c b/28_day/haribote/bootpack.c
index d4f821a..92754c6 100644
--- a/28_day/haribote/bootpack.c
+++ b/28_day/haribote/bootpack.c
@@ -47,6 +47,10 @@ void HariMain(void)
 	int key_shift = 0, key_leds = (binfo->leds >> 4) & 7, keycmd_wait = -1;
 	int j, x, y, mmx = -1, mmy = -1, mmx2 = 0;
 	struct SHEET *sht = 0, *key_win, *sht2;
+	int *fat;
+	unsigned char *nihongo;
+	struct FILEINFO *finfo;
+	extern char hankaku[4096];
 
 	init_gdtidt();
 	init_pic();
@@ -71,6 +75,7 @@ void HariMain(void)
 	fifo.task = task_a;
 	task_run(task_a, 1, 2);
 	*((int *) 0x0fe4) = (int) shtctl;
+	task_a->langmode = 0;
 
 	/* sht_back */
 	sht_back  = sheet_alloc(shtctl);
@@ -96,10 +101,28 @@ void HariMain(void)
 	sheet_updown(sht_mouse, 2);
 	keywin_on(key_win);
 
-	/*为了避免和键盘当前状态冲突，在一开始先进行设置*/
+	/* 为了避免和键盘当前状态冲突，在一开始先进行设置 */
 	fifo32_put(&keycmd, KEYCMD_LED);
 	fifo32_put(&keycmd, key_leds);
 
+	/* 载入nihongo.fnt */
+	nihongo = (unsigned char *) memman_alloc_4k(memman, 16 * 256 + 32 * 94 * 47);
+	fat = (int *) memman_alloc_4k(memman, 4 * 2880);
+	file_readfat(fat, (unsigned char *) (ADR_DISKIMG + 0x000200));
+	finfo = file_search("nihongo.fnt", (struct FILEINFO *) (ADR_DISKIMG + 0x002600), 224);
+	if (finfo != 0) {
+		file_loadfile(finfo->clustno, finfo->size, nihongo, fat, (char *) (ADR_DISKIMG + 0x003e00));
+	} else {
+		for (i = 0; i < 16 * 256; i++) {
+			nihongo[i] = hankaku[i]; /* 没有字库，半角部分直接复制英文字库 */
+		}
+		for (i = 16 * 256; i < 16 * 256 + 32 * 94 * 47; i++) {
+			nihongo[i] = 0xff; /* 没有字库，全角部分以0xff填充 */
+		}
+	}
+	*((int *) 0x0fe8) = (int) nihongo;
+	memman_free_4k(memman, (int) fat, 4 * 2880);
+
 	for (;;) {
 		if (fifo32_status(&keycmd) > 0 && keycmd_wait < 0) {
 			/* 如果存在向键盘控制器发送的数据，则发送它 */
diff --git a/28_day/haribote/bootpack.h b/28_day/haribote/bootpack.h
index 56c12b8..3247663 100644
--- a/28_day/haribote/bootpack.h
+++ b/28_day/haribote/bootpack.h
@@ -217,6 +217,7 @@ struct TASK {
 	struct FILEHANDLE *fhandle;
 	int *fat;
 	char *cmdline;
+	char langmode;
 };
 struct TASKLEVEL {
 	int running; /*正在运行的任务数量*/
@@ -268,6 +269,7 @@ void cmd_dir(struct CONSOLE *cons);
 void cmd_exit(struct CONSOLE *cons, int *fat);
 void cmd_start(struct CONSOLE *cons, char *cmdline, int memtotal);
 void cmd_ncst(struct CONSOLE *cons, char *cmdline, int memtotal);
+void cmd_langmode(struct CONSOLE *cons, char *cmdline);
 int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline);
 int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int eax);
 int *inthandler0d(int *esp);
diff --git a/28_day/haribote/console.c b/28_day/haribote/console.c
index 3d0c70b..7d6b750 100644
--- a/28_day/haribote/console.c
+++ b/28_day/haribote/console.c
@@ -12,6 +12,7 @@ void console_task(struct SHEET *sheet, int memtotal)
 	struct FILEHANDLE fhandle[8];
 	struct CONSOLE cons;
 	char cmdline[30];
+	unsigned char *nihongo = (char *) *((int *) 0x0fe8);
 
 	cons.sht = sheet;
 	cons.cur_x =  8;
@@ -31,6 +32,11 @@ void console_task(struct SHEET *sheet, int memtotal)
 	}
 	task->fhandle = fhandle;
 	task->fat = fat;
+	if (nihongo[4096] != 0xff) {	 /* 是否载入了字库？*/
+		task->langmode = 1;
+	} else {
+		task->langmode = 0;
+	}
 
 	/*显示提示符*/
 	cons_putchar(&cons, '>', 1);
@@ -205,7 +211,9 @@ void cons_runcmd(char *cmdline, struct CONSOLE *cons, int *fat, int memtotal)
 		cmd_start(cons, cmdline, memtotal);
 	} else if (strncmp(cmdline, "ncst ", 5) == 0) {
 		cmd_ncst(cons, cmdline, memtotal);
-	} else if (cmdline[0] != 0) {
+	} else if (strncmp(cmdline, "langmode ", 9) == 0) {
+		cmd_langmode(cons, cmdline);
+	}else if (cmdline[0] != 0) {
 		if (cmd_app(cons, fat, cmdline) == 0) {
 			/*不是命令，不是应用程序，也不是空行*/
 			cons_putstr0(cons, "Bad command.\n\n");
@@ -317,6 +325,19 @@ void cmd_ncst(struct CONSOLE *cons, char *cmdline, int memtotal)
 	return;
 }
 
+void cmd_langmode(struct CONSOLE *cons, char *cmdline)
+{
+	struct TASK *task = task_now();
+	unsigned char mode = cmdline[9] - '0';
+	if (mode <= 1) {
+		task->langmode = mode;
+	} else {
+		cons_putstr0(cons, "mode number error.\n");
+	}
+	cons_newline(cons);
+	return;
+}
+
 int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline)
 {
 	struct MEMMAN *memman = (struct MEMMAN *) MEMMAN_ADDR;
diff --git a/28_day/haribote/graphic.c b/28_day/haribote/graphic.c
index 4bd6979..0df664b 100644
--- a/28_day/haribote/graphic.c
+++ b/28_day/haribote/graphic.c
@@ -108,9 +108,19 @@ void putfonts8_asc(char *vram, int xsize, int x, int y, char c, unsigned char *s
 {
 	extern char hankaku[4096];
 	/* C语言中，字符串都是以0x00结尾 */
-	for (; *s != 0x00; s++) {
-		putfont8(vram, xsize, x, y, c, hankaku + *s * 16);
-		x += 8;
+	struct TASK *task = task_now();
+	char *nihongo = (char *) *((int *) 0x0fe8);
+	if (task->langmode == 0) {
+		for (; *s != 0x00; s++) {
+			putfont8(vram, xsize, x, y, c, hankaku + *s * 16);
+			x += 8;
+		}
+	}
+	if (task->langmode == 1) {
+		for (; *s != 0x00; s++) {
+			putfont8(vram, xsize, x, y, c, nihongo + *s * 16);
+			x += 8;
+		}
 	}
 	return;
 }
diff --git a/28_day/iroha/!cons_9x.bat b/28_day/iroha/!cons_9x.bat
new file mode 100644
index 0000000..e42252a
--- /dev/null
+++ b/28_day/iroha/!cons_9x.bat
@@ -0,0 +1 @@
+command
\ No newline at end of file
diff --git a/28_day/iroha/!cons_nt.bat b/28_day/iroha/!cons_nt.bat
new file mode 100644
index 0000000..6e07473
--- /dev/null
+++ b/28_day/iroha/!cons_nt.bat
@@ -0,0 +1 @@
+cmd.exe
\ No newline at end of file
diff --git a/28_day/iroha/Makefile b/28_day/iroha/Makefile
new file mode 100644
index 0000000..df134ad
--- /dev/null
+++ b/28_day/iroha/Makefile
@@ -0,0 +1,5 @@
+APP      = iroha
+STACK    = 1k
+MALLOC   = 0k
+
+include ../app_make.txt
diff --git a/28_day/iroha/iroha.c b/28_day/iroha/iroha.c
new file mode 100644
index 0000000..3ed1dd8
--- /dev/null
+++ b/28_day/iroha/iroha.c
@@ -0,0 +1,9 @@
+#include "apilib.h"
+
+void HariMain(void)
+{
+	static char s[9] = { 0xb2, 0xdb, 0xca, 0xc6, 0xce, 0xcd, 0xc4, 0x0a, 0x00 };
+	/*半角片假名イロハニホヘト的字符编码+换行+0 */
+	api_putstr0(s);
+	api_end();
+}
diff --git a/28_day/iroha/make.bat b/28_day/iroha/make.bat
new file mode 100644
index 0000000..6b0dbfc
--- /dev/null
+++ b/28_day/iroha/make.bat
@@ -0,0 +1 @@
+..\..\z_tools\make.exe %1 %2 %3 %4 %5 %6 %7 %8 %9
\ No newline at end of file
diff --git a/28_day/nihongo/jpn16v00.bin b/28_day/nihongo/jpn16v00.bin
new file mode 100644
index 0000000..135f07c
Binary files /dev/null and b/28_day/nihongo/jpn16v00.bin differ
diff --git a/28_day/nihongo/jpn16v00.fnt b/28_day/nihongo/jpn16v00.fnt
new file mode 100644
index 0000000..cd7387a
Binary files /dev/null and b/28_day/nihongo/jpn16v00.fnt differ
diff --git a/28_day/nihongo/nihongo.fnt b/28_day/nihongo/nihongo.fnt
new file mode 100644
index 0000000..e312bf5
Binary files /dev/null and b/28_day/nihongo/nihongo.fnt differ