diff --git a/encode.go b/encode.go
index 9dad513..3da7b4f 100644
--- a/encode.go
+++ b/encode.go
@@ -20,15 +20,6 @@ type Encoder struct {
 	indentStr         string
 }
 
-type EncodeOption int
-
-const (
-	EncodeOptionHTMLEscape EncodeOption = 1 << iota
-	EncodeOptionIndent
-	EncodeOptionUnorderedMap
-	EncodeOptionDebug
-)
-
 // NewEncoder returns a new encoder that writes to w.
 func NewEncoder(w io.Writer) *Encoder {
 	return &Encoder{w: w, enabledHTMLEscape: true}
@@ -52,21 +43,21 @@ func (e *Encoder) EncodeWithOption(v interface{}, optFuncs ...EncodeOptionFunc)
 }
 
 func (e *Encoder) encodeWithOption(ctx *encoder.RuntimeContext, v interface{}, optFuncs ...EncodeOptionFunc) error {
-	var opt EncodeOption
+	initOption(ctx.Option)
 	if e.enabledHTMLEscape {
-		opt |= EncodeOptionHTMLEscape
+		ctx.Option.HTMLEscape = true
 	}
 	for _, optFunc := range optFuncs {
-		opt = optFunc(opt)
+		optFunc(ctx.Option)
 	}
 	var (
 		buf []byte
 		err error
 	)
 	if e.enabledIndent {
-		buf, err = encodeIndent(ctx, v, e.prefix, e.indentStr, opt)
+		buf, err = encodeIndent(ctx, v, e.prefix, e.indentStr)
 	} else {
-		buf, err = encode(ctx, v, opt)
+		buf, err = encode(ctx, v)
 	}
 	if err != nil {
 		return err
@@ -103,10 +94,16 @@ func (e *Encoder) SetIndent(prefix, indent string) {
 	e.enabledIndent = true
 }
 
-func marshal(v interface{}, opt EncodeOption) ([]byte, error) {
+func marshal(v interface{}, optFuncs ...EncodeOptionFunc) ([]byte, error) {
 	ctx := encoder.TakeRuntimeContext()
 
-	buf, err := encode(ctx, v, opt|EncodeOptionHTMLEscape)
+	initOption(ctx.Option)
+	ctx.Option.HTMLEscape = true
+	for _, optFunc := range optFuncs {
+		optFunc(ctx.Option)
+	}
+
+	buf, err := encode(ctx, v)
 	if err != nil {
 		encoder.ReleaseRuntimeContext(ctx)
 		return nil, err
@@ -124,10 +121,13 @@ func marshal(v interface{}, opt EncodeOption) ([]byte, error) {
 	return copied, nil
 }
 
-func marshalNoEscape(v interface{}, opt EncodeOption) ([]byte, error) {
+func marshalNoEscape(v interface{}) ([]byte, error) {
 	ctx := encoder.TakeRuntimeContext()
 
-	buf, err := encodeNoEscape(ctx, v, opt|EncodeOptionHTMLEscape)
+	initOption(ctx.Option)
+	ctx.Option.HTMLEscape = true
+
+	buf, err := encodeNoEscape(ctx, v)
 	if err != nil {
 		encoder.ReleaseRuntimeContext(ctx)
 		return nil, err
@@ -145,10 +145,17 @@ func marshalNoEscape(v interface{}, opt EncodeOption) ([]byte, error) {
 	return copied, nil
 }
 
-func marshalIndent(v interface{}, prefix, indent string, opt EncodeOption) ([]byte, error) {
+func marshalIndent(v interface{}, prefix, indent string, optFuncs ...EncodeOptionFunc) ([]byte, error) {
 	ctx := encoder.TakeRuntimeContext()
 
-	buf, err := encodeIndent(ctx, v, prefix, indent, opt|EncodeOptionHTMLEscape)
+	initOption(ctx.Option)
+	ctx.Option.HTMLEscape = true
+	ctx.Option.Indent = true
+	for _, optFunc := range optFuncs {
+		optFunc(ctx.Option)
+	}
+
+	buf, err := encodeIndent(ctx, v, prefix, indent)
 	if err != nil {
 		encoder.ReleaseRuntimeContext(ctx)
 		return nil, err
@@ -162,7 +169,7 @@ func marshalIndent(v interface{}, prefix, indent string, opt EncodeOption) ([]by
 	return copied, nil
 }
 
-func encode(ctx *encoder.RuntimeContext, v interface{}, opt EncodeOption) ([]byte, error) {
+func encode(ctx *encoder.RuntimeContext, v interface{}) ([]byte, error) {
 	b := ctx.Buf[:0]
 	if v == nil {
 		b = encoder.AppendNull(b)
@@ -180,7 +187,7 @@ func encode(ctx *encoder.RuntimeContext, v interface{}, opt EncodeOption) ([]byt
 
 	p := uintptr(header.ptr)
 	var code *encoder.Opcode
-	if (opt & EncodeOptionHTMLEscape) != 0 {
+	if ctx.Option.HTMLEscape {
 		code = codeSet.EscapeKeyCode
 	} else {
 		code = codeSet.NoescapeKeyCode
@@ -188,7 +195,7 @@ func encode(ctx *encoder.RuntimeContext, v interface{}, opt EncodeOption) ([]byt
 	ctx.Init(code, p, codeSet.CodeLength)
 	ctx.KeepRefs = append(ctx.KeepRefs, header.ptr)
 
-	buf, err := encodeRunCode(ctx, b, codeSet, opt)
+	buf, err := encodeRunCode(ctx, b, codeSet)
 	if err != nil {
 		return nil, err
 	}
@@ -196,7 +203,7 @@ func encode(ctx *encoder.RuntimeContext, v interface{}, opt EncodeOption) ([]byt
 	return buf, nil
 }
 
-func encodeNoEscape(ctx *encoder.RuntimeContext, v interface{}, opt EncodeOption) ([]byte, error) {
+func encodeNoEscape(ctx *encoder.RuntimeContext, v interface{}) ([]byte, error) {
 	b := ctx.Buf[:0]
 	if v == nil {
 		b = encoder.AppendNull(b)
@@ -213,14 +220,14 @@ func encodeNoEscape(ctx *encoder.RuntimeContext, v interface{}, opt EncodeOption
 	}
 
 	var code *encoder.Opcode
-	if (opt & EncodeOptionHTMLEscape) != 0 {
+	if ctx.Option.HTMLEscape {
 		code = codeSet.EscapeKeyCode
 	} else {
 		code = codeSet.NoescapeKeyCode
 	}
 	p := uintptr(header.ptr)
 	ctx.Init(code, p, codeSet.CodeLength)
-	buf, err := encodeRunCode(ctx, b, codeSet, opt)
+	buf, err := encodeRunCode(ctx, b, codeSet)
 	if err != nil {
 		return nil, err
 	}
@@ -229,7 +236,7 @@ func encodeNoEscape(ctx *encoder.RuntimeContext, v interface{}, opt EncodeOption
 	return buf, nil
 }
 
-func encodeIndent(ctx *encoder.RuntimeContext, v interface{}, prefix, indent string, opt EncodeOption) ([]byte, error) {
+func encodeIndent(ctx *encoder.RuntimeContext, v interface{}, prefix, indent string) ([]byte, error) {
 	b := ctx.Buf[:0]
 	if v == nil {
 		b = encoder.AppendNull(b)
@@ -246,14 +253,14 @@ func encodeIndent(ctx *encoder.RuntimeContext, v interface{}, prefix, indent str
 	}
 
 	var code *encoder.Opcode
-	if (opt & EncodeOptionHTMLEscape) != 0 {
+	if ctx.Option.HTMLEscape {
 		code = codeSet.EscapeKeyCode
 	} else {
 		code = codeSet.NoescapeKeyCode
 	}
 	p := uintptr(header.ptr)
 	ctx.Init(code, p, codeSet.CodeLength)
-	buf, err := encodeRunIndentCode(ctx, b, codeSet, prefix, indent, opt)
+	buf, err := encodeRunIndentCode(ctx, b, codeSet, prefix, indent)
 
 	ctx.KeepRefs = append(ctx.KeepRefs, header.ptr)
 
@@ -265,38 +272,45 @@ func encodeIndent(ctx *encoder.RuntimeContext, v interface{}, prefix, indent str
 	return buf, nil
 }
 
-func encodeRunCode(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt EncodeOption) ([]byte, error) {
-	if (opt & EncodeOptionDebug) != 0 {
-		return encodeDebugRunCode(ctx, b, codeSet, opt)
+func encodeRunCode(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
+	if ctx.Option.Debug {
+		return encodeDebugRunCode(ctx, b, codeSet)
 	}
-	if (opt & EncodeOptionHTMLEscape) != 0 {
-		return vm_escaped.Run(ctx, b, codeSet, encoder.Option(opt))
+	if ctx.Option.HTMLEscape {
+		return vm_escaped.Run(ctx, b, codeSet)
 	}
-	return vm.Run(ctx, b, codeSet, encoder.Option(opt))
+	return vm.Run(ctx, b, codeSet)
 }
 
-func encodeDebugRunCode(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt EncodeOption) ([]byte, error) {
-	if (opt & EncodeOptionHTMLEscape) != 0 {
-		return vm_escaped.DebugRun(ctx, b, codeSet, encoder.Option(opt))
+func encodeDebugRunCode(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
+	if ctx.Option.HTMLEscape {
+		return vm_escaped.DebugRun(ctx, b, codeSet)
 	}
-	return vm.DebugRun(ctx, b, codeSet, encoder.Option(opt))
+	return vm.DebugRun(ctx, b, codeSet)
 }
 
-func encodeRunIndentCode(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, prefix, indent string, opt EncodeOption) ([]byte, error) {
+func encodeRunIndentCode(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, prefix, indent string) ([]byte, error) {
 	ctx.Prefix = []byte(prefix)
 	ctx.IndentStr = []byte(indent)
-	if (opt & EncodeOptionDebug) != 0 {
-		return encodeDebugRunIndentCode(ctx, b, codeSet, opt)
+	if ctx.Option.Debug {
+		return encodeDebugRunIndentCode(ctx, b, codeSet)
 	}
-	if (opt & EncodeOptionHTMLEscape) != 0 {
-		return vm_escaped_indent.Run(ctx, b, codeSet, encoder.Option(opt))
+	if ctx.Option.HTMLEscape {
+		return vm_escaped_indent.Run(ctx, b, codeSet)
 	}
-	return vm_indent.Run(ctx, b, codeSet, encoder.Option(opt))
+	return vm_indent.Run(ctx, b, codeSet)
 }
 
-func encodeDebugRunIndentCode(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt EncodeOption) ([]byte, error) {
-	if (opt & EncodeOptionHTMLEscape) != 0 {
-		return vm_escaped_indent.DebugRun(ctx, b, codeSet, encoder.Option(opt))
+func encodeDebugRunIndentCode(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
+	if ctx.Option.HTMLEscape {
+		return vm_escaped_indent.DebugRun(ctx, b, codeSet)
 	}
-	return vm_indent.DebugRun(ctx, b, codeSet, encoder.Option(opt))
+	return vm_indent.DebugRun(ctx, b, codeSet)
+}
+
+func initOption(opt *EncodeOption) {
+	opt.HTMLEscape = false
+	opt.Indent = false
+	opt.UnorderedMap = false
+	opt.Debug = false
 }
diff --git a/internal/cmd/generator/vm.go.tmpl b/internal/cmd/generator/vm.go.tmpl
index 7af9d3a..b68a306 100644
--- a/internal/cmd/generator/vm.go.tmpl
+++ b/internal/cmd/generator/vm.go.tmpl
@@ -9,7 +9,7 @@ import (
 	"github.com/goccy/go-json/internal/encoder"
 )
 
-func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt encoder.Option) ([]byte, error) {
+func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
 	recursiveLevel := 0
 	ptrOffset := uintptr(0)
 	ctxptr := ctx.Ptr()
@@ -185,7 +185,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 				code = code.Next
 				break
 			}
-			bb, err := appendInterface(ctx, codeSet, opt, code, b, iface, ptrOffset)
+			bb, err := appendInterface(ctx, codeSet, code, b, iface, ptrOffset)
 			if err != nil {
 				return nil, err
 			}
@@ -365,13 +365,13 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 			store(ctxptr, code.ElemIdx, 0)
 			store(ctxptr, code.Length, uintptr(mlen))
 			store(ctxptr, code.MapIter, uintptr(iter))
-			if (opt & encoder.UnorderedMapOption) == 0 {
+			if ctx.Option.UnorderedMap {
+				b = appendMapKeyIndent(ctx, code.Next, b)
+			} else {
 				mapCtx := encoder.NewMapContext(mlen)
 				mapCtx.Pos = append(mapCtx.Pos, len(b))
 				ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(mapCtx))
 				store(ctxptr, code.End.MapPos, uintptr(unsafe.Pointer(mapCtx)))
-			} else {
-				b = appendMapKeyIndent(ctx, code.Next, b)
 			}
 			key := mapiterkey(iter)
 			store(ctxptr, code.Next.Idx, uintptr(key))
@@ -380,7 +380,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 			idx := load(ctxptr, code.ElemIdx)
 			length := load(ctxptr, code.Length)
 			idx++
-			if (opt & encoder.UnorderedMapOption) != 0 {
+			if ctx.Option.UnorderedMap {
 				if idx < length {
 					b = appendMapKeyIndent(ctx, code, b)
 					store(ctxptr, code.ElemIdx, idx)
@@ -409,7 +409,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 				}
 			}
 		case encoder.OpMapValue:
-			if (opt & encoder.UnorderedMapOption) != 0 {
+			if ctx.Option.UnorderedMap {
 				b = appendColon(b)
 			} else {
 				ptr := load(ctxptr, code.End.MapPos)
diff --git a/internal/encoder/context.go b/internal/encoder/context.go
index 2a81e7b..e917134 100644
--- a/internal/encoder/context.go
+++ b/internal/encoder/context.go
@@ -97,6 +97,7 @@ var (
 				Buf:      make([]byte, 0, bufSize),
 				Ptrs:     make([]uintptr, 128),
 				KeepRefs: make([]unsafe.Pointer, 0, 8),
+				Option:   &Option{},
 			}
 		},
 	}
@@ -112,6 +113,7 @@ type RuntimeContext struct {
 	Prefix     []byte
 	IndentStr  []byte
 	Code       *Opcode
+	Option     *Option
 }
 
 func (c *RuntimeContext) Init(code *Opcode, p uintptr, codelen int) {
diff --git a/internal/encoder/encoder.go b/internal/encoder/encoder.go
index 2f9b6a7..4ab4c4d 100644
--- a/internal/encoder/encoder.go
+++ b/internal/encoder/encoder.go
@@ -17,14 +17,6 @@ import (
 	"github.com/goccy/go-json/internal/runtime"
 )
 
-type Option int
-
-const (
-	HTMLEscapeOption Option = 1 << iota
-	IndentOption
-	UnorderedMapOption
-)
-
 func (t OpType) IsMultipleOpHead() bool {
 	switch t {
 	case OpStructHead:
diff --git a/internal/encoder/option.go b/internal/encoder/option.go
new file mode 100644
index 0000000..0e61a1f
--- /dev/null
+++ b/internal/encoder/option.go
@@ -0,0 +1,8 @@
+package encoder
+
+type Option struct {
+	HTMLEscape   bool
+	Indent       bool
+	UnorderedMap bool
+	Debug        bool
+}
diff --git a/internal/encoder/vm/debug_vm.go b/internal/encoder/vm/debug_vm.go
index 1a49c0d..5891c55 100644
--- a/internal/encoder/vm/debug_vm.go
+++ b/internal/encoder/vm/debug_vm.go
@@ -6,7 +6,7 @@ import (
 	"github.com/goccy/go-json/internal/encoder"
 )
 
-func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt encoder.Option) ([]byte, error) {
+func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
 	defer func() {
 		if err := recover(); err != nil {
 			fmt.Println("=============[DEBUG]===============")
@@ -23,5 +23,5 @@ func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet,
 		}
 	}()
 
-	return Run(ctx, b, codeSet, opt)
+	return Run(ctx, b, codeSet)
 }
diff --git a/internal/encoder/vm/util.go b/internal/encoder/vm/util.go
index 2887827..f0d29c2 100644
--- a/internal/encoder/vm/util.go
+++ b/internal/encoder/vm/util.go
@@ -123,7 +123,7 @@ func appendMapEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte
 	return b
 }
 
-func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, opt encoder.Option, _ *encoder.Opcode, b []byte, iface *emptyInterface, ptrOffset uintptr) ([]byte, error) {
+func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, _ *encoder.Opcode, b []byte, iface *emptyInterface, ptrOffset uintptr) ([]byte, error) {
 	ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(iface))
 	ifaceCodeSet, err := encoder.CompileToGetCodeSet(uintptr(unsafe.Pointer(iface.typ)))
 	if err != nil {
@@ -148,7 +148,7 @@ func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, op
 	ctx.Ptrs = newPtrs
 	ctx.Code = ifaceCodeSet.NoescapeKeyCode
 
-	bb, err := Run(ctx, b, ifaceCodeSet, opt)
+	bb, err := Run(ctx, b, ifaceCodeSet)
 	if err != nil {
 		return nil, err
 	}
diff --git a/internal/encoder/vm/vm.go b/internal/encoder/vm/vm.go
index 7af9d3a..b68a306 100644
--- a/internal/encoder/vm/vm.go
+++ b/internal/encoder/vm/vm.go
@@ -9,7 +9,7 @@ import (
 	"github.com/goccy/go-json/internal/encoder"
 )
 
-func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt encoder.Option) ([]byte, error) {
+func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
 	recursiveLevel := 0
 	ptrOffset := uintptr(0)
 	ctxptr := ctx.Ptr()
@@ -185,7 +185,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 				code = code.Next
 				break
 			}
-			bb, err := appendInterface(ctx, codeSet, opt, code, b, iface, ptrOffset)
+			bb, err := appendInterface(ctx, codeSet, code, b, iface, ptrOffset)
 			if err != nil {
 				return nil, err
 			}
@@ -365,13 +365,13 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 			store(ctxptr, code.ElemIdx, 0)
 			store(ctxptr, code.Length, uintptr(mlen))
 			store(ctxptr, code.MapIter, uintptr(iter))
-			if (opt & encoder.UnorderedMapOption) == 0 {
+			if ctx.Option.UnorderedMap {
+				b = appendMapKeyIndent(ctx, code.Next, b)
+			} else {
 				mapCtx := encoder.NewMapContext(mlen)
 				mapCtx.Pos = append(mapCtx.Pos, len(b))
 				ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(mapCtx))
 				store(ctxptr, code.End.MapPos, uintptr(unsafe.Pointer(mapCtx)))
-			} else {
-				b = appendMapKeyIndent(ctx, code.Next, b)
 			}
 			key := mapiterkey(iter)
 			store(ctxptr, code.Next.Idx, uintptr(key))
@@ -380,7 +380,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 			idx := load(ctxptr, code.ElemIdx)
 			length := load(ctxptr, code.Length)
 			idx++
-			if (opt & encoder.UnorderedMapOption) != 0 {
+			if ctx.Option.UnorderedMap {
 				if idx < length {
 					b = appendMapKeyIndent(ctx, code, b)
 					store(ctxptr, code.ElemIdx, idx)
@@ -409,7 +409,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 				}
 			}
 		case encoder.OpMapValue:
-			if (opt & encoder.UnorderedMapOption) != 0 {
+			if ctx.Option.UnorderedMap {
 				b = appendColon(b)
 			} else {
 				ptr := load(ctxptr, code.End.MapPos)
diff --git a/internal/encoder/vm_escaped/debug_vm.go b/internal/encoder/vm_escaped/debug_vm.go
index a4e773c..b10f588 100644
--- a/internal/encoder/vm_escaped/debug_vm.go
+++ b/internal/encoder/vm_escaped/debug_vm.go
@@ -6,7 +6,7 @@ import (
 	"github.com/goccy/go-json/internal/encoder"
 )
 
-func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt encoder.Option) ([]byte, error) {
+func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
 	defer func() {
 		if err := recover(); err != nil {
 			fmt.Println("=============[DEBUG]===============")
@@ -23,5 +23,5 @@ func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet,
 		}
 	}()
 
-	return Run(ctx, b, codeSet, opt)
+	return Run(ctx, b, codeSet)
 }
diff --git a/internal/encoder/vm_escaped/util.go b/internal/encoder/vm_escaped/util.go
index 13fd3e3..5f1a77c 100644
--- a/internal/encoder/vm_escaped/util.go
+++ b/internal/encoder/vm_escaped/util.go
@@ -123,7 +123,7 @@ func appendMapEnd(_ *encoder.RuntimeContext, _ *encoder.Opcode, b []byte) []byte
 	return b
 }
 
-func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, opt encoder.Option, _ *encoder.Opcode, b []byte, iface *emptyInterface, ptrOffset uintptr) ([]byte, error) {
+func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, _ *encoder.Opcode, b []byte, iface *emptyInterface, ptrOffset uintptr) ([]byte, error) {
 	ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(iface))
 	ifaceCodeSet, err := encoder.CompileToGetCodeSet(uintptr(unsafe.Pointer(iface.typ)))
 	if err != nil {
@@ -148,7 +148,7 @@ func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, op
 	ctx.Ptrs = newPtrs
 	ctx.Code = ifaceCodeSet.EscapeKeyCode
 
-	bb, err := Run(ctx, b, ifaceCodeSet, opt)
+	bb, err := Run(ctx, b, ifaceCodeSet)
 	if err != nil {
 		return nil, err
 	}
diff --git a/internal/encoder/vm_escaped/vm.go b/internal/encoder/vm_escaped/vm.go
index eb6a923..ae8ca01 100644
--- a/internal/encoder/vm_escaped/vm.go
+++ b/internal/encoder/vm_escaped/vm.go
@@ -9,7 +9,7 @@ import (
 	"github.com/goccy/go-json/internal/encoder"
 )
 
-func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt encoder.Option) ([]byte, error) {
+func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
 	recursiveLevel := 0
 	ptrOffset := uintptr(0)
 	ctxptr := ctx.Ptr()
@@ -185,7 +185,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 				code = code.Next
 				break
 			}
-			bb, err := appendInterface(ctx, codeSet, opt, code, b, iface, ptrOffset)
+			bb, err := appendInterface(ctx, codeSet, code, b, iface, ptrOffset)
 			if err != nil {
 				return nil, err
 			}
@@ -365,13 +365,13 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 			store(ctxptr, code.ElemIdx, 0)
 			store(ctxptr, code.Length, uintptr(mlen))
 			store(ctxptr, code.MapIter, uintptr(iter))
-			if (opt & encoder.UnorderedMapOption) == 0 {
+			if ctx.Option.UnorderedMap {
+				b = appendMapKeyIndent(ctx, code.Next, b)
+			} else {
 				mapCtx := encoder.NewMapContext(mlen)
 				mapCtx.Pos = append(mapCtx.Pos, len(b))
 				ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(mapCtx))
 				store(ctxptr, code.End.MapPos, uintptr(unsafe.Pointer(mapCtx)))
-			} else {
-				b = appendMapKeyIndent(ctx, code.Next, b)
 			}
 			key := mapiterkey(iter)
 			store(ctxptr, code.Next.Idx, uintptr(key))
@@ -380,7 +380,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 			idx := load(ctxptr, code.ElemIdx)
 			length := load(ctxptr, code.Length)
 			idx++
-			if (opt & encoder.UnorderedMapOption) != 0 {
+			if ctx.Option.UnorderedMap {
 				if idx < length {
 					b = appendMapKeyIndent(ctx, code, b)
 					store(ctxptr, code.ElemIdx, idx)
@@ -409,7 +409,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 				}
 			}
 		case encoder.OpMapValue:
-			if (opt & encoder.UnorderedMapOption) != 0 {
+			if ctx.Option.UnorderedMap {
 				b = appendColon(b)
 			} else {
 				ptr := load(ctxptr, code.End.MapPos)
diff --git a/internal/encoder/vm_escaped_indent/debug_vm.go b/internal/encoder/vm_escaped_indent/debug_vm.go
index 2654630..dcbdb10 100644
--- a/internal/encoder/vm_escaped_indent/debug_vm.go
+++ b/internal/encoder/vm_escaped_indent/debug_vm.go
@@ -6,7 +6,7 @@ import (
 	"github.com/goccy/go-json/internal/encoder"
 )
 
-func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt encoder.Option) ([]byte, error) {
+func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
 	defer func() {
 		if err := recover(); err != nil {
 			fmt.Println("=============[DEBUG]===============")
@@ -23,5 +23,5 @@ func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet,
 		}
 	}()
 
-	return Run(ctx, b, codeSet, opt)
+	return Run(ctx, b, codeSet)
 }
diff --git a/internal/encoder/vm_escaped_indent/util.go b/internal/encoder/vm_escaped_indent/util.go
index b1458ae..48354f5 100644
--- a/internal/encoder/vm_escaped_indent/util.go
+++ b/internal/encoder/vm_escaped_indent/util.go
@@ -111,7 +111,7 @@ func appendColon(b []byte) []byte {
 	return append(b, ':', ' ')
 }
 
-func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, opt encoder.Option, code *encoder.Opcode, b []byte, iface *emptyInterface, ptrOffset uintptr) ([]byte, error) {
+func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, code *encoder.Opcode, b []byte, iface *emptyInterface, ptrOffset uintptr) ([]byte, error) {
 	ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(iface))
 	ifaceCodeSet, err := encoder.CompileToGetCodeSet(uintptr(unsafe.Pointer(iface.typ)))
 	if err != nil {
@@ -138,7 +138,7 @@ func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, op
 	oldBaseIndent := ctx.BaseIndent
 	ctx.BaseIndent = code.Indent
 	ctx.Code = ifaceCodeSet.EscapeKeyCode
-	bb, err := Run(ctx, b, ifaceCodeSet, opt)
+	bb, err := Run(ctx, b, ifaceCodeSet)
 	if err != nil {
 		return nil, err
 	}
diff --git a/internal/encoder/vm_escaped_indent/vm.go b/internal/encoder/vm_escaped_indent/vm.go
index 11ad8e6..fa9ff75 100644
--- a/internal/encoder/vm_escaped_indent/vm.go
+++ b/internal/encoder/vm_escaped_indent/vm.go
@@ -9,7 +9,7 @@ import (
 	"github.com/goccy/go-json/internal/encoder"
 )
 
-func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt encoder.Option) ([]byte, error) {
+func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
 	recursiveLevel := 0
 	ptrOffset := uintptr(0)
 	ctxptr := ctx.Ptr()
@@ -185,7 +185,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 				code = code.Next
 				break
 			}
-			bb, err := appendInterface(ctx, codeSet, opt, code, b, iface, ptrOffset)
+			bb, err := appendInterface(ctx, codeSet, code, b, iface, ptrOffset)
 			if err != nil {
 				return nil, err
 			}
@@ -365,13 +365,13 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 			store(ctxptr, code.ElemIdx, 0)
 			store(ctxptr, code.Length, uintptr(mlen))
 			store(ctxptr, code.MapIter, uintptr(iter))
-			if (opt & encoder.UnorderedMapOption) == 0 {
+			if ctx.Option.UnorderedMap {
+				b = appendMapKeyIndent(ctx, code.Next, b)
+			} else {
 				mapCtx := encoder.NewMapContext(mlen)
 				mapCtx.Pos = append(mapCtx.Pos, len(b))
 				ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(mapCtx))
 				store(ctxptr, code.End.MapPos, uintptr(unsafe.Pointer(mapCtx)))
-			} else {
-				b = appendMapKeyIndent(ctx, code.Next, b)
 			}
 			key := mapiterkey(iter)
 			store(ctxptr, code.Next.Idx, uintptr(key))
@@ -380,7 +380,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 			idx := load(ctxptr, code.ElemIdx)
 			length := load(ctxptr, code.Length)
 			idx++
-			if (opt & encoder.UnorderedMapOption) != 0 {
+			if ctx.Option.UnorderedMap {
 				if idx < length {
 					b = appendMapKeyIndent(ctx, code, b)
 					store(ctxptr, code.ElemIdx, idx)
@@ -409,7 +409,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 				}
 			}
 		case encoder.OpMapValue:
-			if (opt & encoder.UnorderedMapOption) != 0 {
+			if ctx.Option.UnorderedMap {
 				b = appendColon(b)
 			} else {
 				ptr := load(ctxptr, code.End.MapPos)
diff --git a/internal/encoder/vm_indent/debug_vm.go b/internal/encoder/vm_indent/debug_vm.go
index 4dc9ee8..348d6ff 100644
--- a/internal/encoder/vm_indent/debug_vm.go
+++ b/internal/encoder/vm_indent/debug_vm.go
@@ -6,7 +6,7 @@ import (
 	"github.com/goccy/go-json/internal/encoder"
 )
 
-func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt encoder.Option) ([]byte, error) {
+func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
 	defer func() {
 		if err := recover(); err != nil {
 			fmt.Println("=============[DEBUG]===============")
@@ -23,5 +23,5 @@ func DebugRun(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet,
 		}
 	}()
 
-	return Run(ctx, b, codeSet, opt)
+	return Run(ctx, b, codeSet)
 }
diff --git a/internal/encoder/vm_indent/util.go b/internal/encoder/vm_indent/util.go
index ae358f2..799f99c 100644
--- a/internal/encoder/vm_indent/util.go
+++ b/internal/encoder/vm_indent/util.go
@@ -111,7 +111,7 @@ func appendColon(b []byte) []byte {
 	return append(b, ':', ' ')
 }
 
-func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, opt encoder.Option, code *encoder.Opcode, b []byte, iface *emptyInterface, ptrOffset uintptr) ([]byte, error) {
+func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, code *encoder.Opcode, b []byte, iface *emptyInterface, ptrOffset uintptr) ([]byte, error) {
 	ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(iface))
 	ifaceCodeSet, err := encoder.CompileToGetCodeSet(uintptr(unsafe.Pointer(iface.typ)))
 	if err != nil {
@@ -138,7 +138,7 @@ func appendInterface(ctx *encoder.RuntimeContext, codeSet *encoder.OpcodeSet, op
 	oldBaseIndent := ctx.BaseIndent
 	ctx.BaseIndent = code.Indent
 	ctx.Code = ifaceCodeSet.NoescapeKeyCode
-	bb, err := Run(ctx, b, ifaceCodeSet, opt)
+	bb, err := Run(ctx, b, ifaceCodeSet)
 	if err != nil {
 		return nil, err
 	}
diff --git a/internal/encoder/vm_indent/vm.go b/internal/encoder/vm_indent/vm.go
index b165f7b..9223c45 100644
--- a/internal/encoder/vm_indent/vm.go
+++ b/internal/encoder/vm_indent/vm.go
@@ -9,7 +9,7 @@ import (
 	"github.com/goccy/go-json/internal/encoder"
 )
 
-func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt encoder.Option) ([]byte, error) {
+func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet) ([]byte, error) {
 	recursiveLevel := 0
 	ptrOffset := uintptr(0)
 	ctxptr := ctx.Ptr()
@@ -185,7 +185,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 				code = code.Next
 				break
 			}
-			bb, err := appendInterface(ctx, codeSet, opt, code, b, iface, ptrOffset)
+			bb, err := appendInterface(ctx, codeSet, code, b, iface, ptrOffset)
 			if err != nil {
 				return nil, err
 			}
@@ -365,13 +365,13 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 			store(ctxptr, code.ElemIdx, 0)
 			store(ctxptr, code.Length, uintptr(mlen))
 			store(ctxptr, code.MapIter, uintptr(iter))
-			if (opt & encoder.UnorderedMapOption) == 0 {
+			if ctx.Option.UnorderedMap {
+				b = appendMapKeyIndent(ctx, code.Next, b)
+			} else {
 				mapCtx := encoder.NewMapContext(mlen)
 				mapCtx.Pos = append(mapCtx.Pos, len(b))
 				ctx.KeepRefs = append(ctx.KeepRefs, unsafe.Pointer(mapCtx))
 				store(ctxptr, code.End.MapPos, uintptr(unsafe.Pointer(mapCtx)))
-			} else {
-				b = appendMapKeyIndent(ctx, code.Next, b)
 			}
 			key := mapiterkey(iter)
 			store(ctxptr, code.Next.Idx, uintptr(key))
@@ -380,7 +380,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 			idx := load(ctxptr, code.ElemIdx)
 			length := load(ctxptr, code.Length)
 			idx++
-			if (opt & encoder.UnorderedMapOption) != 0 {
+			if ctx.Option.UnorderedMap {
 				if idx < length {
 					b = appendMapKeyIndent(ctx, code, b)
 					store(ctxptr, code.ElemIdx, idx)
@@ -409,7 +409,7 @@ func Run(ctx *encoder.RuntimeContext, b []byte, codeSet *encoder.OpcodeSet, opt
 				}
 			}
 		case encoder.OpMapValue:
-			if (opt & encoder.UnorderedMapOption) != 0 {
+			if ctx.Option.UnorderedMap {
 				b = appendColon(b)
 			} else {
 				ptr := load(ctxptr, code.End.MapPos)
diff --git a/json.go b/json.go
index 05756ef..4ac8536 100644
--- a/json.go
+++ b/json.go
@@ -160,16 +160,12 @@ func Marshal(v interface{}) ([]byte, error) {
 
 // MarshalNoEscape
 func MarshalNoEscape(v interface{}) ([]byte, error) {
-	return marshalNoEscape(v, EncodeOptionHTMLEscape)
+	return marshalNoEscape(v)
 }
 
 // MarshalWithOption returns the JSON encoding of v with EncodeOption.
 func MarshalWithOption(v interface{}, optFuncs ...EncodeOptionFunc) ([]byte, error) {
-	opt := EncodeOptionHTMLEscape
-	for _, optFunc := range optFuncs {
-		opt = optFunc(opt)
-	}
-	return marshal(v, opt)
+	return marshal(v, optFuncs...)
 }
 
 // MarshalIndent is like Marshal but applies Indent to format the output.
@@ -181,11 +177,7 @@ func MarshalIndent(v interface{}, prefix, indent string) ([]byte, error) {
 
 // MarshalIndentWithOption is like Marshal but applies Indent to format the output with EncodeOption.
 func MarshalIndentWithOption(v interface{}, prefix, indent string, optFuncs ...EncodeOptionFunc) ([]byte, error) {
-	opt := EncodeOptionHTMLEscape | EncodeOptionIndent
-	for _, optFunc := range optFuncs {
-		opt = optFunc(opt)
-	}
-	return marshalIndent(v, prefix, indent, opt)
+	return marshalIndent(v, prefix, indent, optFuncs...)
 }
 
 // Unmarshal parses the JSON-encoded data and stores the result
@@ -326,7 +318,7 @@ func HTMLEscape(dst *bytes.Buffer, src []byte) {
 	if err := dec.Decode(&v); err != nil {
 		return
 	}
-	buf, _ := marshal(v, EncodeOptionHTMLEscape)
+	buf, _ := marshal(v)
 	dst.Write(buf)
 }
 
diff --git a/option.go b/option.go
index 6837a4b..cd2bdfe 100644
--- a/option.go
+++ b/option.go
@@ -1,15 +1,21 @@
 package json
 
-type EncodeOptionFunc func(EncodeOption) EncodeOption
+import (
+	"github.com/goccy/go-json/internal/encoder"
+)
 
-func UnorderedMap() func(EncodeOption) EncodeOption {
-	return func(opt EncodeOption) EncodeOption {
-		return opt | EncodeOptionUnorderedMap
+type EncodeOption = encoder.Option
+
+type EncodeOptionFunc func(*EncodeOption)
+
+func UnorderedMap() EncodeOptionFunc {
+	return func(opt *EncodeOption) {
+		opt.UnorderedMap = true
 	}
 }
 
-func Debug() func(EncodeOption) EncodeOption {
-	return func(opt EncodeOption) EncodeOption {
-		return opt | EncodeOptionDebug
+func Debug() EncodeOptionFunc {
+	return func(opt *EncodeOption) {
+		opt.Debug = true
 	}
 }