diff --git a/assets/characters/README.md b/assets/characters/README.md
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+# Character Assets
+
+## Main Style
+
+The preferred character image direction is premium photorealistic key art.
+
+Base standing images should feel like high-end promotional portraits for a mature romance game: cinematic lighting, realistic fabric, distinct body silhouettes, expressive adult faces, and character-specific styling.
+
+## Current Files
+
+- `han_seoyun_v1.png`: preferred photorealistic style target.
+- `style_tests/han_seoyun_semi_realistic_test.png`: semi-realistic comparison candidate.
+- `style_tests/yu_harin_semi_realistic_test.png`: semi-realistic comparison candidate.
+
+## Asset Naming
+
+- Use `<character_id>_v<number>.png` for main candidates.
+- Use `style_tests/<character_id>_<style>_test.png` for experiments.
+- Keep generated originals in their default generator folder; copy selected candidates into this project.
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diff --git a/docs/art/character_image_direction.md b/docs/art/character_image_direction.md
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+# Character Image Direction
+
+## Goal
+
+Create high-impact base character images for a mature romance dating game. Each image should communicate the character's age, personality, body type, fashion sense, sensual appeal, and romantic tone at a glance.
+
+## Baseline Prompt Rules
+
+- Solo adult woman, clearly 19 or older.
+- Full-body standing key art, vertical composition.
+- Main direction: premium photorealistic character key art with cinematic lighting.
+- Secondary direction only when useful: semi-realistic dating-sim illustration.
+- Mature, attractive, unmistakably sensual fashion and body language.
+- No nudity, explicit sex act, fetish framing, school uniform, childlike styling, or ambiguous age.
+- No text, logo, watermark, extra characters, or busy background.
+- Use generous margins so the character can be used as a standing portrait asset.
+
+## Quality Checklist
+
+An image passes only when all of these are true:
+
+- The character clearly reads as an adult.
+- Outfit, pose, expression, and silhouette match the character brief.
+- Even shy or pure-hearted characters still carry visible adult sensual charm through styling, posture, and lighting.
+- Body type is distinct from the rest of the cast.
+- Face is appealing, stable, and not uncanny.
+- Hands, legs, and feet have no obvious anatomy errors.
+- The asset works as a base standing image in a character screen.
+- Resolution is high enough for production review, or the asset is marked as a draft for upscaling/regeneration.
+
+## Cast Variety Targets
+
+- Avoid making every character the same face, height, pose, and body shape.
+- Rotate visual tone: warm, shy, sharp, glamorous, mature, athletic, artistic, elegant, casual.
+- Use fashion to signal route identity before the player reads text.
+- Keep sensuality character-specific: shy routes should feel quietly irresistible, career routes sharply confident, public-image routes glamorous, and mature routes restrained but intense.
+
+## Current Asset Notes
+
+- `assets/characters/han_seoyun_v1.png`: strong warm cooking-instructor read, tasteful sensuality, good full-body composition. This photorealistic direction is now the preferred style target.
+- `assets/characters/style_tests/han_seoyun_semi_realistic_test.png`: useful semi-realistic illustration candidate, but no longer the main direction.
+- `assets/characters/style_tests/yu_harin_semi_realistic_test.png`: strong semi-realistic candidate, but should be regenerated in the photorealistic direction.
diff --git a/docs/art/photoreal_character_briefs.md b/docs/art/photoreal_character_briefs.md
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+# Photoreal Character Briefs
+
+These briefs are the preferred direction for base character images. They should be used to create photorealistic full-body standing portraits with strong adult appeal while avoiding explicit nudity or sex-act framing in base assets.
+
+## Global Direction
+
+- Premium photorealistic Korean romance game key art.
+- Full-body solo woman, clearly adult, vertical composition.
+- Cinematic lighting, realistic skin and fabric, clean character-select readability.
+- Character-specific sensuality through silhouette, fashion, gaze, posture, and lighting.
+- No school uniform, childlike styling, ambiguous age, explicit nudity, sex acts, text, logo, watermark, or extra characters.
+
+## Character Briefs
+
+| ID | Visual Hook | Photoreal Base Image Direction |
+| --- | --- | --- |
+| `han_seoyun` | Warm cooking instructor, soft curves, caring gaze | Cream off-shoulder knit, fitted skirt, waist apron, warm studio light, gentle smile with possessive warmth. |
+| `yu_harin` | Shy bookstore heroine, quiet adult charm | Fitted dress, sheer cardigan, book held close, bashful eyes, warm old-bookstore light, restrained but visible curves. |
+| `kang_mirae` | Sharp career woman, controlled confidence | Tailored navy suit, silk blouse, slit pencil skirt, tablet in hand, luxury corporate lounge, commanding gaze. |
+| `jung_naeun` | Tsundere cafe worker, blush under attitude | Cropped cardigan, stylish cafe apron, arms crossed, pouty expression, modern cafe backdrop, soft natural figure. |
+| `baek_chaewon` | Glamorous event planner, dangerous flirtation | Deep wine party dress, sparkling jewelry, over-shoulder pose, event hall lights, playful smile with guarded eyes. |
+| `oh_sera` | Elegant widow florist, mature sorrow | Ivory silk blouse, muted long skirt, soft shawl, single flower, low-saturation flower shop, calm sad smile. |
+| `moon_jia` | Festival energy, colorful confidence | Colorful crop top, fitted shorts, open staff vest, reaching hand, bright street lights, athletic lively figure. |
+| `lim_sohee` | Petite anxious tenderness, protective appeal | Pastel cardigan, short fitted dress, clasped hands, quiet cafe evening, vulnerable eyes, soft adult curves. |
+| `cha_yuri` | Tall model, cool urban allure | Monochrome mini dress, oversized coat, long boots, runway stance, rooftop night light, detached gaze. |
+| `shin_yerim` | Classical elegance, restrained intensity | Black evening dress, pearl earrings, concert program, chandelier-lit lobby, composed posture, teasing smile. |
+| `kim_doa` | Adult college newcomer, bright curiosity | Stylish college jacket, casual crop top, refined pleated skirt, pamphlet and iced coffee, fresh but clearly adult. |
+| `park_minseo` | Athletic trainer, competitive body confidence | Sports top, high-waist leggings, jacket tied at waist, towel or water bottle, gym rim light, toned figure. |
+| `seo_irin` | Emotional illustrator, dreamy studio | Oversized artist shirt, paint-marked shorts, brush and sketchbook, dawn studio light, delicate intense eyes. |
+| `yoon_gayoung` | Casual friend-to-lover, sudden attraction | Loose hoodie, denim shorts, one hand in pocket, neighborhood night glow, playful smile turning romantic. |
+| `choi_ria` | Influencer glamour, public-image polish | Designer mini dress or crop set, phone in hand, boutique studio lights, camera-aware confident gaze. |
+| `hong_sua` | Jazz bar owner, mature night appeal | Dark emerald satin dress, loose bar apron, amber jazz-bar light, relaxed direct gaze, voluptuous silhouette. |
+| `lee_bom` | Flower-shop warmth, gentle stubbornness | Floral fitted dress, thin cardigan, flower apron, bouquet, sunlit shop, bright smile with determined eyes. |
+| `go_eunjae` | Contract lawyer, cold authority | Sharp black suit, white shirt dress, contract folder, law office, intense eyes, sleek monochrome styling. |
+| `ryu_haena` | Sweet possessive nail artist, close distance | Fitted knit top, chic mini skirt, detailed nail art, fingers near lips, warm fashion-street cafe light. |
+| `nam_juhee` | Athletic police officer, protective restraint | Tailored modern uniform-inspired outfit, utility belt, upright stance, evening patrol light, calm disciplined expression. |
+| `marina` | Free-spirited travel aura, direct charm | Halter dress, open traveler shirt, silk scarf, suitcase, cosmopolitan lounge, confident playful smile. |
+| `song_arin` | Second-chance maturity, quiet intimacy | Knit dress, gentle cardigan, ceramic mug, warm decor shop, cautious smile, petite graceful figure. |
+
+## Prompting Note
+
+If an image generator blocks romance-game wording, rephrase the prompt as a premium fashion/editorial character reference while preserving the same outfit, expression, posture, and setting. The visual target remains mature photorealistic romance key art.