diff --git a/packages/react/storybook/.storybook/preview.ts b/packages/react/storybook/.storybook/preview.ts
index b6dc191f..1dbcd053 100644
--- a/packages/react/storybook/.storybook/preview.ts
+++ b/packages/react/storybook/.storybook/preview.ts
@@ -1,6 +1,20 @@
 import type {Preview} from '@storybook/react-vite'
 
 const preview: Preview = {
+	globalTypes: {
+		showPlainValue: {
+			name: 'Plain Value',
+			description: 'Toggle plain value panel',
+			defaultValue: 'show',
+			toolbar: {
+				icon: 'eye',
+				items: [
+					{value: 'show', icon: 'eye'},
+					{value: 'hide', icon: 'eyeclose'},
+				],
+			},
+		},
+	},
 	parameters: {
 		controls: {
 			hideNoControlsWarning: true,
diff --git a/packages/react/storybook/src/pages/Drag/Drag.stories.tsx b/packages/react/storybook/src/pages/Drag/Drag.stories.tsx
index c3ab62b5..96b43270 100644
--- a/packages/react/storybook/src/pages/Drag/Drag.stories.tsx
+++ b/packages/react/storybook/src/pages/Drag/Drag.stories.tsx
@@ -1,11 +1,12 @@
-import {MarkedInput} from '@markput/react'
-import type {MarkProps, Option} from '@markput/react'
+import {MarkedInput, useMark} from '@markput/react'
+import type {MarkProps, MarkedInputProps, Option} from '@markput/react'
 import type {Meta, StoryObj} from '@storybook/react-vite'
 import type {CSSProperties, ReactNode} from 'react'
 import {useState} from 'react'
 
 import {Text} from '../../shared/components/Text'
 import {DRAG_MARKDOWN} from '../../shared/lib/sampleTexts'
+import {withPlainValue} from '../../shared/lib/withPlainValue'
 import {markdownOptions} from '../Nested/MarkdownOptions'
 
 export default {
@@ -72,114 +73,120 @@ const todoOptions: Option<TodoMarkProps>[] = [
 		}),
 	},
 	{
-		markup: '- [ ] __nested__\n\n',
-		mark: (props: MarkProps) => ({...props, todo: 'pending' as const, style: {display: 'block'} as CSSProperties}),
-	},
-	{
-		markup: '- [x] __nested__\n\n',
-		mark: (props: MarkProps) => ({
-			...props,
-			todo: 'done' as const,
-			style: {display: 'block', textDecoration: 'line-through', opacity: 0.5} as CSSProperties,
-		}),
-	},
-	{
-		markup: '\t- [ ] __nested__\n\n',
-		mark: (props: MarkProps) => ({
-			...props,
-			todo: 'pending' as const,
-			style: {display: 'block', paddingLeft: '1.5em'} as CSSProperties,
-		}),
+		markup: '- [__value__] __nested__\n',
+		mark: (props: MarkProps) => {
+			const isDone = props.value === 'x'
+			return {
+				...props,
+				todo: isDone ? 'done' : 'pending',
+				style: {
+					display: 'block',
+					opacity: isDone ? 0.55 : undefined,
+				} as CSSProperties,
+			}
+		},
 	},
 	{
-		markup: '\t- [x] __nested__\n\n',
-		mark: (props: MarkProps) => ({
-			...props,
-			todo: 'done' as const,
-			style: {
-				display: 'block',
-				paddingLeft: '1.5em',
-				textDecoration: 'line-through',
-				opacity: 0.5,
-			} as CSSProperties,
-		}),
+		markup: '\t- [__value__] __nested__\n',
+		mark: (props: MarkProps) => {
+			const isDone = props.value === 'x'
+			return {
+				...props,
+				todo: isDone ? 'done' : 'pending',
+				style: {
+					display: 'block',
+					paddingLeft: '22px',
+					borderLeft: '2px solid #d0d7de',
+					opacity: isDone ? 0.55 : undefined,
+				} as CSSProperties,
+			}
+		},
 	},
 	{
-		markup: '\t\t- [ ] __nested__\n\n',
-		mark: (props: MarkProps) => ({
-			...props,
-			todo: 'pending' as const,
-			style: {display: 'block', paddingLeft: '3em'} as CSSProperties,
-		}),
+		markup: '\t\t- [__value__] __nested__\n',
+		mark: (props: MarkProps) => {
+			const isDone = props.value === 'x'
+			return {
+				...props,
+				todo: isDone ? 'done' : 'pending',
+				style: {
+					display: 'block',
+					paddingLeft: '22px',
+					marginLeft: '24px',
+					borderLeft: '2px solid #d0d7de',
+					opacity: isDone ? 0.55 : undefined,
+				} as CSSProperties,
+			}
+		},
 	},
 	{
-		markup: '\t\t- [x] __nested__\n\n',
+		markup: '> __nested__\n\n',
 		mark: (props: MarkProps) => ({
 			...props,
-			todo: 'done' as const,
 			style: {
 				display: 'block',
-				paddingLeft: '3em',
-				textDecoration: 'line-through',
-				opacity: 0.5,
+				fontSize: '0.85em',
+				color: '#888',
+				fontStyle: 'italic',
+				marginTop: 16,
 			} as CSSProperties,
 		}),
 	},
-	{
-		markup: '> __nested__\n\n',
-		mark: (props: MarkProps) => ({
-			...props,
-			style: {display: 'block', fontSize: '0.85em', color: '#888', fontStyle: 'italic'} as CSSProperties,
-		}),
-	},
 ]
 
-const TodoMark = ({children, value, style, todo}: TodoMarkProps) => (
-	<span style={{...style, margin: '0 1px'}}>
-		{todo && <span style={{marginRight: 6}}>{todo === 'done' ? '\u2611' : '\u2610'}</span>}
-		{children || value}
-	</span>
-)
+const TodoMark = ({nested, style, todo}: TodoMarkProps) => {
+	const mark = useMark()
+	const [isDone, setIsDone] = useState(mark.value === 'x')
+
+	return (
+		<span
+			style={{
+				...style,
+				margin: '0 1px',
+				opacity: isDone ? 0.55 : undefined,
+			}}
+		>
+			{todo !== undefined && (
+				<input
+					type="checkbox"
+					checked={isDone}
+					onChange={() => {
+						const next = !isDone
+						setIsDone(next)
+						mark.value = next ? 'x' : ' '
+					}}
+					disabled={mark.readOnly}
+					style={{marginRight: 6}}
+				/>
+			)}
+			{nested}
+		</span>
+	)
+}
 
 const TODO_VALUE = `# \u{1F4CB} Project Launch Checklist
 
 - [ ] Design Phase
-
 \t- [ ] Create wireframes
-
 \t- [x] Define color palette
-
 \t- [ ] Design component library
-
 - [x] Research
-
 \t- [x] Analyze competitors
-
 \t- [x] User interviews
-
 \t\t- [x] Draft interview questions
-
 \t\t- [x] Schedule 5 sessions
-
 - [ ] Development
-
 \t- [ ] Set up CI/CD pipeline
-
 \t- [x] Write unit tests
-
 \t- [ ] API integration
-
 \t\t- [ ] Auth endpoints
-
 \t\t- [ ] Data sync
-
 - [ ] Launch
-
 \t- [ ] Final QA pass
-
 \t- [ ] Deploy to production
+> \u2610 = pending  \u2611 = done
 
-> \u2610 = pending  \u2611 = done`
+`
 
 // ─── Test helper stories (used by Drag.spec.tsx) ─────────────────────────────
 
@@ -229,22 +236,12 @@ export const ReadOnlyDrag: Story = {
 
 // ─── Todo list (all marks include \n\n) ───────────────────────────────────────
 
-export const TodoList: Story = {
-	render: () => {
-		const [value, setValue] = useState(TODO_VALUE)
-
-		return (
-			<div style={{maxWidth: 700, margin: '0 auto', paddingLeft: 52}}>
-				<MarkedInput
-					Mark={TodoMark}
-					options={todoOptions}
-					value={value}
-					onChange={setValue}
-					drag
-					style={{minHeight: 200, padding: 12, border: '1px solid #e0e0e0', borderRadius: 8}}
-				/>
-				<Text label="Raw value:" value={value} />
-			</div>
-		)
+export const TodoList: StoryObj<MarkedInputProps<TodoMarkProps>> = {
+	decorators: [withPlainValue],
+	args: {
+		Mark: TodoMark,
+		options: todoOptions,
+		value: TODO_VALUE,
+		drag: true,
 	},
 }
\ No newline at end of file
diff --git a/packages/react/storybook/src/shared/components/Text/Text.css b/packages/react/storybook/src/shared/components/Text/Text.css
index 20635e98..b110eae8 100644
--- a/packages/react/storybook/src/shared/components/Text/Text.css
+++ b/packages/react/storybook/src/shared/components/Text/Text.css
@@ -1,12 +1,79 @@
-pre {
-	font-family:
-		Apple-System,
-		Arial,
-		Helvetica,
-		PingFang SC,
-		Hiragino Sans GB,
-		Microsoft YaHei,
-		STXihei,
-		sans-serif;
-	font-size: 14px;
+.text-container {
+	border: 1px solid #d0d7de;
+	border-radius: 6px;
+	overflow: hidden;
+}
+
+.text-header {
+	background: #f0f3f6;
+	padding: 6px 16px;
+	border-bottom: 1px solid #d0d7de;
+}
+
+.text-label {
+	font-size: 12px;
+	font-weight: 600;
+	color: #6b7280;
+	text-transform: uppercase;
+	letter-spacing: 0.06em;
+	font-family: Arial, Helvetica, sans-serif;
+}
+
+.text-label::before {
+	content: '</> ';
+	color: #0550ae;
+	font-style: normal;
+	letter-spacing: 0;
+}
+
+.text-container.text-inset {
+	border: none;
+	border-left: 1px solid #d0d7de;
+	border-radius: 0;
+	height: 100%;
+	background: #f6f8fa;
+}
+
+.text-container.text-inset .text-header {
+	background: transparent;
+	border-bottom-color: #d0d7de;
+}
+
+.text-container.text-inset .text-pre {
+	background: transparent;
+}
+
+.tok-heading-prefix {
+	color: #8b949e;
+}
+.tok-heading-text {
+	color: #0550ae;
+	font-weight: 600;
+}
+.tok-bullet {
+	color: #8b949e;
+}
+.tok-checked {
+	color: #1a7f37;
+	font-weight: 600;
+}
+.tok-unchecked {
+	color: #8b949e;
+}
+.tok-blockquote {
+	color: #8b949e;
+	font-style: italic;
+}
+
+.text-pre {
+	font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
+	font-size: 13px;
+	background: #f6f8fa;
+	padding: 12px 12px;
+	overflow-x: auto;
+	line-height: 1.5;
+	color: #24292f;
+	margin: 0;
+	white-space: pre-wrap;
+	word-break: break-word;
 }
diff --git a/packages/react/storybook/src/shared/components/Text/Text.tsx b/packages/react/storybook/src/shared/components/Text/Text.tsx
index c5ae58a3..8ee03e58 100644
--- a/packages/react/storybook/src/shared/components/Text/Text.tsx
+++ b/packages/react/storybook/src/shared/components/Text/Text.tsx
@@ -3,12 +3,16 @@ import './Text.css'
 export interface TextProps {
 	value: string
 	label?: string
+	className?: string
 }
 
-export const Text = ({value, label}: TextProps) => (
-	<>
-		<br />
-		{label && <b>{label}</b>}
-		<pre>{value}</pre>
-	</>
+export const Text = ({value, label, className}: TextProps) => (
+	<div className={`text-container${className ? ` ${className}` : ''}`}>
+		{label && (
+			<div className="text-header">
+				<span className="text-label">{label}</span>
+			</div>
+		)}
+		<pre className="text-pre">{value}</pre>
+	</div>
 )
\ No newline at end of file
diff --git a/packages/react/storybook/src/shared/lib/withPlainValue.tsx b/packages/react/storybook/src/shared/lib/withPlainValue.tsx
new file mode 100644
index 00000000..3b72165a
--- /dev/null
+++ b/packages/react/storybook/src/shared/lib/withPlainValue.tsx
@@ -0,0 +1,42 @@
+import {useCallback} from 'react'
+import {useArgs, useGlobals} from 'storybook/preview-api'
+
+import {Text} from '../components/Text'
+
+export const withPlainValue = (Story: any) => {
+	const [args, updateArgs] = useArgs()
+	const [globals] = useGlobals()
+	const showPlainValue = globals.showPlainValue !== 'hide'
+
+	const handleChange = useCallback(
+		(newValue: string) => {
+			updateArgs({value: newValue})
+		},
+		[updateArgs]
+	)
+
+	if (!showPlainValue) {
+		return <Story args={{...args, onChange: handleChange}} />
+	}
+
+	return (
+		<div
+			style={{
+				display: 'flex',
+				border: '1px solid #d0d7de',
+				borderRadius: 6,
+				overflow: 'hidden',
+				alignItems: 'stretch',
+			}}
+		>
+			<div style={{flex: 3, minWidth: 0}}>
+				<Story args={{...args, onChange: handleChange}} />
+			</div>
+			{args.value !== undefined && (
+				<div style={{flex: 2, minWidth: 0}}>
+					<Text label="Plain value:" value={args.value} className="text-inset" />
+				</div>
+			)}
+		</div>
+	)
+}
\ No newline at end of file
diff --git a/packages/vue/storybook/src/pages/Drag/Drag.stories.ts b/packages/vue/storybook/src/pages/Drag/Drag.stories.ts
index e711e0d5..5477601b 100644
--- a/packages/vue/storybook/src/pages/Drag/Drag.stories.ts
+++ b/packages/vue/storybook/src/pages/Drag/Drag.stories.ts
@@ -177,11 +177,11 @@ const todoOptions: Option[] = [
 		}),
 	},
 	{
-		markup: '- [ ] __nested__\n\n' as Markup,
+		markup: '- [ ] __nested__\n' as Markup,
 		mark: (props: MarkProps) => ({...props, todo: 'pending', style: {display: 'block'}}),
 	},
 	{
-		markup: '- [x] __nested__\n\n' as Markup,
+		markup: '- [x] __nested__\n' as Markup,
 		mark: (props: MarkProps) => ({
 			...props,
 			todo: 'done',
@@ -189,11 +189,11 @@ const todoOptions: Option[] = [
 		}),
 	},
 	{
-		markup: '\t- [ ] __nested__\n\n' as Markup,
+		markup: '\t- [ ] __nested__\n' as Markup,
 		mark: (props: MarkProps) => ({...props, todo: 'pending', style: {display: 'block', paddingLeft: '1.5em'}}),
 	},
 	{
-		markup: '\t- [x] __nested__\n\n' as Markup,
+		markup: '\t- [x] __nested__\n' as Markup,
 		mark: (props: MarkProps) => ({
 			...props,
 			todo: 'done',
@@ -201,11 +201,11 @@ const todoOptions: Option[] = [
 		}),
 	},
 	{
-		markup: '\t\t- [ ] __nested__\n\n' as Markup,
+		markup: '\t\t- [ ] __nested__\n' as Markup,
 		mark: (props: MarkProps) => ({...props, todo: 'pending', style: {display: 'block', paddingLeft: '3em'}}),
 	},
 	{
-		markup: '\t\t- [x] __nested__\n\n' as Markup,
+		markup: '\t\t- [x] __nested__\n' as Markup,
 		mark: (props: MarkProps) => ({
 			...props,
 			todo: 'done',
@@ -224,42 +224,26 @@ const todoOptions: Option[] = [
 const TODO_VALUE = `# \u{1F4CB} Project Launch Checklist
 
 - [ ] Design Phase
-
 \t- [ ] Create wireframes
-
 \t- [x] Define color palette
-
 \t- [ ] Design component library
-
 - [x] Research
-
 \t- [x] Analyze competitors
-
 \t- [x] User interviews
-
 \t\t- [x] Draft interview questions
-
 \t\t- [x] Schedule 5 sessions
-
 - [ ] Development
-
 \t- [ ] Set up CI/CD pipeline
-
 \t- [x] Write unit tests
-
 \t- [ ] API integration
-
 \t\t- [ ] Auth endpoints
-
 \t\t- [ ] Data sync
-
 - [ ] Launch
-
 \t- [ ] Final QA pass
-
 \t- [ ] Deploy to production
+> \u2610 = pending  \u2611 = done
 
-> \u2610 = pending  \u2611 = done`
+`
 
 // ─── Test helper stories (used by Drag.spec.ts) ──────────────────────────────