diff --git a/decode_test.go b/decode_test.go
index 16e218d5..b81fbdda 100644
--- a/decode_test.go
+++ b/decode_test.go
@@ -839,6 +839,12 @@ func TestDecoder(t *testing.T) {
 				},
 			},
 		},
+
+		// Multi bytes
+		{
+			"v: あいうえお",
+			map[string]string{"v": "あいうえお"},
+		},
 	}
 	for _, test := range tests {
 		buf := bytes.NewBufferString(test.source)
diff --git a/encode_test.go b/encode_test.go
index e9ddabe5..12bac5c3 100644
--- a/encode_test.go
+++ b/encode_test.go
@@ -285,6 +285,12 @@ func TestEncoder(t *testing.T) {
 				} "a,flow"
 			}{struct{ B, D string }{"c", "e"}},
 		},
+
+		// Multi bytes
+		{
+			"v: あいうえお\n",
+			map[string]string{"v": "あいうえお"},
+		},
 	}
 	for _, test := range tests {
 		var buf bytes.Buffer
diff --git a/scanner/context.go b/scanner/context.go
index 0f222e96..497f2489 100644
--- a/scanner/context.go
+++ b/scanner/context.go
@@ -10,7 +10,7 @@ import (
 type Context struct {
 	idx         int
 	size        int
-	src         string
+	src         []rune
 	buf         []rune
 	obuf        []rune
 	tokens      token.Tokens
@@ -20,7 +20,8 @@ type Context struct {
 	literalOpt  string
 }
 
-func newContext(src string) *Context {
+func newContext(s string) *Context {
+	src := []rune(s)
 	return &Context{
 		idx:    0,
 		size:   len(src),
@@ -75,23 +76,23 @@ func (c *Context) next() bool {
 }
 
 func (c *Context) source(s, e int) string {
-	return c.src[s:e]
+	return string(c.src[s:e])
 }
 
 func (c *Context) previousChar() rune {
 	if c.idx > 0 {
-		return rune(c.src[c.idx-1])
+		return c.src[c.idx-1]
 	}
 	return rune(0)
 }
 
 func (c *Context) currentChar() rune {
-	return rune(c.src[c.idx])
+	return c.src[c.idx]
 }
 
 func (c *Context) nextChar() rune {
 	if c.size > c.idx+1 {
-		return rune(c.src[c.idx+1])
+		return c.src[c.idx+1]
 	}
 	return rune(0)
 }
@@ -99,7 +100,7 @@ func (c *Context) nextChar() rune {
 func (c *Context) repeatNum(r rune) int {
 	cnt := 0
 	for i := c.idx; i < c.size; i++ {
-		if rune(c.src[i]) == r {
+		if c.src[i] == r {
 			cnt++
 		} else {
 			break