---
title: "Koibito Yuugi"
description: "Yuuta has started living alone in spite of opposition from his parents. But, he sinks into poverty soon.... One day, his older brother, Shuuhei, is transferred "
image: "https://t.vndb.org/cv/65/4465.jpg"
---

# Koibito Yuugi

![Koibito Yuugi](https://t.vndb.org/cv/65/4465.jpg)

**Alternative Title:** コイビト遊戯

**Developer:** PIL/SLASH

**Release date:** Aug 24, 2007

**Platform:** Windows

**Language:** Japanese, Chinese (simplified)

**Rating:** 6.6/10 (76 votes)

## Description
Yuuta has started living alone in spite of opposition from his parents. But, he sinks into poverty soon.... One day, his older brother, Shuuhei, is transferred to his town and starts living together with him. From poor life to rich life, thanks to Shuuhei. But, Yuuta forgets the fact that Shuuhei is a big worrywart....

[From [ErogeShop](http://web.archive.org/web/20090403071838/http://www.erogeshop.com:80/product_info.php/cPath/146_52/products_id/1007587)]

## Characters
### Aikawa Yuuta (藍川裕太)
- **Gender:** Male
- **Measurements:** Height: 172cm, Weight: 49kg
- **Hair:** Pink, Shoulder-length
- **Engages in:** Cross-dressing
- **Body:** Teen, Pale, Body Piercing
- **Clothes:** School Uniform, Trousers, Pajamas, Suit, Kemonomimi Headband, Shirt, Miniskirt, Knee-high Socks, Garter Belt Stockings, Hairpin, Blindfold, Bondage Harness, Pendant Necklace, Bracelet, Ribbon Tie, Tracksuit, Fishnet Stockings, Pleated Skirt
- **Personality:** Hard Worker, Ore, Friendly, Naive, Food Lover
- **Eyes:** Grey, Hazel, Tareme
- **Subject of:** Hypnotism, Blackmail, Confinement, Weakness, Being Drugged, Feminization, Forced Cross-dressing, Unhealthy Relationship
- **Role:** Son, Full Brother, Childhood Friend, Classmate, Poor, High School Student, Younger Brother, Part-time Worker
- **Voiced by:** Takigawa Daisuke

### Aikawa Shuuhei (藍川周平)
- **Gender:** Male
- **Measurements:** Height: 181cm, Weight: 74kg
- **Hair:** Violet, Curtained, Short, Parted in Middle
- **Body:** Slim, Pale, Young-adult
- **Eyes:** Blue, Hosome
- **Clothes:** Suit, Necktie, Shirt, Belt, Bow Tie
- **Personality:** Yandere, Ore, Possessive, Brother Complex, Obsessive
- **Role:** Betrothed, Son, Full Brother, Older Brother, Ex-boyfriend
- **Engages in:** Murder, Drugging, Confinement
- **Subject of:** Arranged Marriage
- **Voiced by:** Hikaru

### Haga Ibuki (芳賀伊吹)
- **Gender:** Male
- **Measurements:** Height: 185cm, Weight: 78kg
- **Hair:** Brown, Short, Short Bangs
- **Body:** Pale, Young-adult, Muscular, Male Cleavage
- **Clothes:** School Uniform, Trousers, T-shirt, Pendant Necklace, Bracelet, Tracksuit
- **Eyes:** Black, Hosome
- **Personality:** Ore, Airhead, Friendly, Energetic, Emotional
- **Engages in:** Martial Arts
- **Role:** Half-orphan, Younger Brother, School Basketball Club Member
- **Voiced by:** Healthy Tarou

### Hirose Ryou (廣瀬諒)
- **Gender:** Male
- **Measurements:** Height: 179cm, Weight: 68kg
- **Hair:** Black, Short
- **Eyes:** Brown, Hosome
- **Body:** Pale, Young-adult, Mole
- **Clothes:** School Uniform, Trousers, Kimono, Necktie, Belt, Hoodie
- **Personality:** Ore, Kind
- **Role:** Childhood Friend, Classmate, High School Student, School Athletic Club Member
- **Voiced by:** Hirai Tatsuya

### Izumizawa Daiki (和泉澤大貴)
- **Gender:** Male
- **Measurements:** Height: 181cm, Weight: 69kg
- **Hair:** Brown, Parted to Side
- **Body:** Pale, Young-adult
- **Clothes:** Trousers, Belt, Gakuran
- **Personality:** Boku, Relaxed, Cold-hearted, Nature Lover, Haraguro, Bookworm, Homophobe
- **Role:** Twin Brother, Childhood Friend, Yakuza, Wealthy, High School Student
- **Items:** Book
- **Eyes:** Hosome, Itome, Teal
- **Subject of:** Sexual Child Abuse
- **Engages in:** Discrimination
- **Voiced by:** Asano Youji

### KOKI
- **Gender:** Male
- **Aliases:** コーキ, Koki, 光貴, Kouki
- **Measurements:** Height: 182cm, Weight: 71kg
- **Hair:** Short, Spiky, Dyed, Orange
- **Body:** Pale, Young-adult
- **Eyes:** Blue, Hosome
- **Clothes:** Earrings, Wristband, Belt, Tank Top, Ring, Pendant Necklace, Bracelet, Studs
- **Personality:** Yangire, Ore, Short-tempered, Strange, Genius, Energetic, Atashi, Moody, Non-Binary
- **Role:** Twin Brother, Wealthy, High School Student, Bisexual, Younger Brother, Model
- **Voiced by:** Inuno Chuusuke

### Sakurai Keiju (櫻井啓寿)
- **Gender:** Male
- **Measurements:** Height: 182cm, Weight: 72kg
- **Hair:** Black, Short
- **Body:** Pale, Young-adult
- **Clothes:** School Uniform, Trousers, Glasses, Shirt, Belt
- **Eyes:** Violet, Hosome
- **Personality:** Yandere, Stoic, Pretending, Possessive, Misogynist, Manipulative
- **Role:** Childhood Friend, Classmate, Wealthy, High School Student, Not a Virgin, Pet Owner, Bisexual, Younger Brother
- **Engages in:** Manipulation
- **Voiced by:** Fuji Bakuhatsu

### Takizawa Ren (滝沢蓮)
- **Gender:** Male
- **Measurements:** Height: 183cm, Weight: 70kg
- **Hair:** Blond, Curtained, Shoulder-length, Parted in Middle
- **Body:** Pale, Young-adult
- **Clothes:** School Uniform, Trousers, Earrings, Belt, Ring, Chain Jewellery, Pendant Necklace, Bracelet, Decorative Belt, Choker
- **Personality:** Ore, Lazy, Selfish, Cynic, Womanizer, Stylish, Promiscuous
- **Engages in:** Blackmail
- **Role:** Classmate, Wealthy, Russian, Bisexual, Model, Living Alone, Multiracial
- **Subject of:** Psychological Trauma
- **Eyes:** Hosome, Teal
- **Voiced by:** Kayama Keiji

### Anjou Sayuri (安条沙百合)
- **Gender:** Female
- **Hair:** Violet, Wavy, Shoulder-length
- **Body:** Pale, Young-adult
- **Engages in:** Cooking, Not Sexually Involved
- **Clothes:** Necklace, Skirt, Shrug
- **Role:** Girlfriend, Coworker, Ex-girlfriend
- **Personality:** Kind, Watashi
- **Eyes:** Cyan
- **Subject of:** Disappointment

### Daisuke (大輔)
- **Gender:** Male
- **Hair:** Brown, Short, Spiky Bangs
- **Eyes:** Black
- **Body:** Young-adult, Tanned
- **Clothes:** Jacket
- **Personality:** Ore
- **Role:** Older Brother

### Fukami Yuuko (深見結子)
- **Gender:** Female
- **Hair:** Brown, Twin Tails, Long, Spiky Bangs
- **Body:** Teen, Slim, Pale, Mole
- **Clothes:** School Uniform, Glasses, Jacket, Shirt, Ribbon Tie, Pleated Skirt
- **Eyes:** Blue, Tareme
- **Personality:** Shy, Short-tempered, Rude, Serious, Haraguro, Watashi
- **Role:** Girlfriend, High School Student
- **Engages in:** Not Sexually Involved, Betrayal

### Kawai (河合)
- **Gender:** Male
- **Hair:** Short, Grey
- **Eyes:** Brown, Hosome
- **Clothes:** School Uniform, Trousers, Jacket, Shirt, Belt, Tracksuit
- **Personality:** Ore, Rude, Vindictive, Violent, Jealous
- **Role:** High School Student, School Basketball Club Member

### Ryou's Mother (諒の母)
- **Gender:** Female
- **Hair:** Black, Bun, Short Bangs
- **Eyes:** Brown, Hosome
- **Body:** Pale, Adult, Mole
- **Clothes:** Kimono
- **Role:** Wife, Mother, No Name
- **Personality:** Kind
- **Engages in:** Not Sexually Involved

### Sakurai Misaki (櫻井 美咲)
- **Gender:** Female
- **Hair:** Blue, Long, Spiky Bangs
- **Body:** Slim, Pale, Young-adult, Makeup
- **Eyes:** Amber, Tareme
- **Clothes:** Dress, Necklace
- **Personality:** Carefree, Friendly, Sweets Lover, Watashi
- **Role:** Writer, Younger Sister, Older Sister
- **Engages in:** Not Sexually Involved

### Sakurai Rin (櫻井凛)
- **Gender:** Female
- **Hair:** Violet, Long, Spiky Bangs
- **Body:** Pale, Young-adult, Makeup
- **Eyes:** Violet
- **Clothes:** Earrings, Shirt, Skirt, Pendant Necklace, Bracelet
- **Engages in:** Teasing, Sexual Harassment
- **Personality:** Relaxed, Mischievous, Watashi
- **Role:** Wealthy, Older Sister

### Father (父)
- **Gender:** Male
- **Hair:** Blue, Short, No Bangs, Slicked Back
- **Body:** Pale, Adult
- **Clothes:** Trousers, Jacket, Belt, Turtleneck Sweater
- **Eyes:** Blue, Hosome
- **Role:** Father

### Gelb (ゲルプ)
- **Gender:** Unknown
- **Role:** Bird, Pet
- **Body:** Feathers, Non-Humanoid

## Shops
- [Official Website](http://pilslash.jp/product/koibito/)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ010472.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=763299)

## Releases
### Japanese
- **2007-08-09**: Koibito Yuugi - Trial Edition - [Official website](http://pilslash.jp/product/koibito/index.shtml), [Animate Games](https://www.animategames.jp/home/detail/40097)
- **2007-08-24**: Koibito Yuugi - First Press Limited Edition - [Official website](http://www.stoneheads.co.jp/pil/slash/product/koibito/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=8123), [Getchu](http://www.getchu.com/soft.phtml?id=427245)
- **2008-03-13**: Koibito Yuugi - Regular Edition - [Official website](http://www.stoneheads.co.jp/pil/slash/product/koibito/), [Getchu](http://www.getchu.com/soft.phtml?id=525125)
- **2010-12-24**: Koibito Yuugi - DVD Edition - [Official website](http://www.stoneheads.co.jp/pil/slash/product/koibito/index.shtml), [Getchu](http://www.getchu.com/soft.phtml?id=697475)
- **2013-02-22**: PIL/SLASH3800 Koibito Yuugi - [Official website](http://pilslash.jp/product/koibito/index.shtml)
- **2013-02-22**: PIL/SLASH3800 Koibito Yuugi - Complete Limited Reprint Edition with Drama CD - [Official website](http://pilslash.jp/product/koibito/), [Getchu](http://www.getchu.com/soft.phtml?id=763299)
- **2015-10-02**: PIL/SLASH3800 Koibito Yuugi - No Voice Download Edition - [Official website](http://pilslash.jp/product/koibito/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=8123), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ010472.html), [Animate Games](https://www.animategames.jp/home/detail/30078), [Gyutto](https://gyutto.com/i/item176422), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0144747/), [DMM](https://www.dmm.co.jp/dc/pcgame/-/detail/=/cid=stone_0013/)

### Chinese (simplified)
- **2025-04-01**: Lianren Youxi - [Official website](http://otome.cn/879713)

## Tags
Horror, ADV, High School, Incest Romance, Male Protagonist, Protagonist with Voice Acting, Drama, School Life Comedy, Protagonist's Brother as a Support Character, Bestiality, Attempted Rape, Yakuza, Bondage, Madness, Evil Route, Twins as Support Characters, Under the Same Roof, Slice of Life, Unlockable Routes, Modern Day Tokyo, Episodic Story, Branching Plot, Bad Ending(s), Unavoidable Protagonist Rape, Protagonist with a Face, Sex in Public Places, Side Portraits, Male on Male Rape, Bad Endings with Story, Student Hero, Protagonist's Childhood Friend as a Hero, Sixty-nine, Hero with Psychological Problems, Adult Hero, Cross-dressing, Musician Hero, Hero with Glasses, Anilingus, Poor Protagonist, Twin Brothers as Heroes, BDSM, Yandere Hero, Athlete Hero, Arranged Marriage, High School Student Protagonist, School Sports Club, Body Writing, Gang Rape, Group Sex of Several Males, Body Piercing, Petplay, Hero with Beauty Mark, Mindbreak, Student Club Member Hero, Protagonist's Blood-related Brother as a Hero, Normal Scene Recollection, Read Text Marking, Birds, Wealthy Hero, Varied Title Screens, Model Hero, Jealousy, Hero with Sexual Experience, Brocon Protagonist, Mirror Sex, Haraguro Hero, Consumption of Pornography, Bisexual Hero, Reversible Yaoi Pairing, Sexual Slavery (Choukyou Variation), Mutual Masturbation, Uke Protagonist, Forced Cross-dressing, Playboy Hero, Boy x Boy Romance Only, Non-Binary Characters, Piss Drinking, Strangulation Sex, Anal Fingering, Voice Saving, Music Recollection, Nipple Piercing, Anal Rape, Brother/Brother Romance, Seke Protagonist, Rape by Others, Pissing on Others, Male on Male Sex Only, Single Handjob, Anal Sex, High School Student Hero, Protagonist's Older Brother as a Hero, Yakuza Hero, Blood-related Brother/Brother Incest, Single Blowjob, Sex in Front of an Audience, Anal Plug Tail, Bukkake, Sexual Blindfold, Sitting Sex, Standing Sex, Confinement, Rapist Hero, High Amounts of Rape

## More Games from PIL/SLASH
- [Masquerade ~Jigoku Gakuen SO/DO/MU~](https://pinovel.net/v1401)
- [Koibito Yuugi](https://pinovel.net/v3659)
- [Shingakkou -Noli me tangere-](https://pinovel.net/v3660)
- [Shingakkou Banchou](https://pinovel.net/v10537)
- [Shingakkou The Gift](https://pinovel.net/v8074)
- [Paradise](https://pinovel.net/v21269)
- [Paradise -MUSUBI-](https://pinovel.net/v24660)
- [Paradise -KIWAME-](https://pinovel.net/v26243)
- [Dystopia no Ou](https://pinovel.net/v27140)

---
*View the full details at [pinovel.net/v3659](https://pinovel.net/v3659).*

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```