diff -urN a/multi.c b/multi.c
--- a/multi.c	2011-06-29 17:37:57.000000000 +0900
+++ b/multi.c	2013-12-13 08:49:54.000000000 +0900
@@ -161,7 +161,7 @@
 
 static ENCSET output = ESISO8;		/* Character set for output */
 #if JAPANESE
-static J_PRIORITY def_priority = PUTF8;	/* Which code was given priority. */
+static J_PRIORITY def_priority = PUJIS;	/* Which code was given priority. */
 #endif
 
 static UWidth utfwidth = UWIDTH_NORMAL;	/* default UTF-8 Width */
diff -urN a/optfunc.c b/optfunc.c
--- a/optfunc.c	2011-05-23 12:48:54.000000000 +0900
+++ b/optfunc.c	2013-12-13 08:49:54.000000000 +0900
@@ -386,11 +386,11 @@
 	{
 	case INIT:
 		if (opt_Z_var == OPT_OFF)
-			init_def_priority(PUTF8);
-		else if (opt_Z_var == OPT_ON)
 			init_def_priority(PUJIS);
-		else if (opt_Z_var == OPT_ONPLUS)
+		else if (opt_Z_var == OPT_ON)
 			init_def_priority(PSJIS);
+		else if (opt_Z_var == OPT_ONPLUS)
+			init_def_priority(PUTF8);
 		break;
 	case QUERY:
 		break;
@@ -410,11 +410,11 @@
 			return;
 		}
 		if (opt_Z_var == OPT_OFF)
-			init_def_priority(PUTF8);
-		else if (opt_Z_var == OPT_ON)
 			init_def_priority(PUJIS);
-		else if (opt_Z_var == OPT_ONPLUS)
+		else if (opt_Z_var == OPT_ON)
 			init_def_priority(PSJIS);
+		else if (opt_Z_var == OPT_ONPLUS)
+			init_def_priority(PUTF8);
 		init_priority(get_mulbuf(curr_ifile));
 		break;
 	}
diff -urN a/opttbl.c b/opttbl.c
--- a/opttbl.c	2011-05-23 12:48:54.000000000 +0900
+++ b/opttbl.c	2013-12-13 08:49:54.000000000 +0900
@@ -488,11 +488,11 @@
 	}
 #if JAPANESE
 	if (opt_Z_var == OPT_OFF)
-		init_def_priority(PUTF8);
-	else if (opt_Z_var == OPT_ON)
 		init_def_priority(PUJIS);
-	else if (opt_Z_var == OPT_ONPLUS)
+	else if (opt_Z_var == OPT_ON)
 		init_def_priority(PSJIS);
+	else if (opt_Z_var == OPT_ONPLUS)
+		init_def_priority(PUTF8);
 #endif
 }