---
title: "Kuru Kuru Coeur"
description: "The protagonist visits his childhood friend Kirara at the prestigious Extraordinary Science Laboratory, or Exlab.  On one of her lab's table lies a mysterious a"
image: "https://t.vndb.org/cv/78/68478.jpg"
---

# Kuru Kuru Coeur

![Kuru Kuru Coeur](https://t.vndb.org/cv/78/68478.jpg)

**Alternative Title:** くるくるくーる

**Aliases:** KKC

**Developer:** Axis

**Release date:** Jun 26, 2009

**Platform:** Windows

**Language:** Japanese

**Rating:** 6.5/10 (31 votes)

## Description
The protagonist visits his childhood friend Kirara at the prestigious Extraordinary Science Laboratory, or Exlab.

On one of her lab's table lies a mysterious and suspicious-looking device. As the protag activates the machine, it turns out it actually is a mechanism capable of changing the gender of a person!

## Characters
### Kunashiri Yuki (国後 ユキ)
- **Gender:** Female
- **Hair:** White, Ahoge, Shoulder-length, Kemonomimi
- **Body:** Teen, Slim, Pale, Big Breasts
- **Clothes:** School Uniform, Apron, Cardigan, Skirt, Thigh-high Stockings, Turtleneck Shirt, Pinafore Dress
- **Role:** Student
- **Eyes:** Pink, Tareme
- **Subject of:** Sexual Harassment, Sex Change (Male to Female)
- **Voiced by:** Okuyama Ayumi

### Kunashiri Yukimitsu (国後 雪光)
- **Gender:** Male
- **Hair:** White, Ahoge, Short
- **Clothes:** School Uniform, Sweater, Trousers, Apron, Necktie, Skirt
- **Role:** Student
- **Eyes:** Pink
- **Subject of:** Sexual Harassment, Sex Change (Male to Female)

### Asahikawa Kirara (旭川 きらら)
- **Gender:** Female
- **Hair:** Red, Waist Length+, Straight, Braid
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Miniskirt, Lab Coat, Kemonomimi Hat, Ribbon Tie, Unusual Hair Ornaments
- **Eyes:** Amber, Tareme
- **Role:** Childhood Friend, Scientist
- **Subject of:** Sex Change (Female to Male)
- **Voiced by:** Aoba Ringo

### Asahikawa Kirara (旭川 キララ)
- **Gender:** Male
- **Hair:** Red, Waist Length+, Straight, Braid
- **Body:** Teen, Slim, Pale, Short
- **Eyes:** Amber, Tsurime
- **Clothes:** Necktie, Lab Coat, Kemonomimi Hat, Unusual Hair Ornaments
- **Role:** Childhood Friend, Scientist
- **Subject of:** Sex Change (Female to Male)

### Hidaka Sayaka (日高 さやか)
- **Gender:** Female
- **Hair:** Violet, Ponytail, Parted to Side, Sidehair
- **Body:** Teen, Pale, Androgynous
- **Clothes:** School Uniform, Glasses, Cardigan, Skirt, Ribbon Tie, Ribbon Headband
- **Eyes:** Amber, Tareme
- **Personality:** Shy
- **Role:** Childhood Friend
- **Subject of:** Sex Change (Female to Male)
- **Voiced by:** Aikawa Nana

### Hidaka Sayaka (日高 サヤカ)
- **Gender:** Male
- **Hair:** Violet, Ahoge, Ponytail, Parted to Side, Sidehair
- **Body:** Teen, Pale, Androgynous
- **Clothes:** School Uniform, Trousers, Glasses, Necktie, Cardigan, Ribbon Hair Tie
- **Eyes:** Amber, Tareme
- **Personality:** Shy
- **Role:** Childhood Friend
- **Subject of:** Sex Change (Female to Male)

### Takasu Gin (鷹栖 ギン)
- **Gender:** Female
- **Hair:** Blue, Long, Straight
- **Body:** Teen, Slim, Pale, Big Breasts
- **Clothes:** School Uniform, Vest, Miniskirt, Ribbon Tie, Ribbon Hair Tie
- **Eyes:** Blue
- **Engages in:** Unarmed Fighting
- **Subject of:** Sex Change (Male to Female)
- **Voiced by:** Himari

### Takasu Ginsei (鷹栖 銀聖)
- **Gender:** Male
- **Hair:** Blue, Short
- **Body:** Teen, Pale
- **Eyes:** Blue
- **Clothes:** Necktie, Blazer School Uniform
- **Engages in:** Unarmed Fighting
- **Subject of:** Sex Change (Male to Female)

### Utanobori Saki (歌登 サキ)
- **Gender:** Male
- **Hair:** Brown, Ponytail, Waist Length+, Curtained, Straight, Parted in Middle, Hair Beads
- **Body:** Pale, Young-adult
- **Clothes:** Trousers, Lab Coat, Hair Tie, Formal Shirt
- **Eyes:** Red
- **Role:** Medical Doctor, Popular
- **Subject of:** Sex Change (Female to Male)

### Utanobori Suzuhime (歌登 紗姫)
- **Gender:** Female
- **Hair:** Brown, Ponytail, Curtained, Straight, Braid, Parted in Middle, Hair Beads
- **Body:** Teen, Slim, Pale, Big Breasts
- **Eyes:** Red, Tareme
- **Clothes:** Cross Necklace, Skirt, Lab Coat, Tank Top, Hair Tie
- **Role:** Medical Doctor, Homosexual, Popular
- **Subject of:** Sex Change (Female to Male)
- **Voiced by:** Shiroi Usagi

### Hidaka Chitose (日高 ちとせ)
[url=/c2639]Hidaka Sayaka[/url]'s older sister.

- **Gender:** Female
- **Hair:** Violet, Long, Straight, Eye Covering
- **Body:** Slim, Pale, Medium Breasts
- **Eyes:** Hidden
- **Clothes:** Bra, Loose, Beaded Necklace
- **Role:** Older Sister
- **Engages in:** Not Sexually Involved
- **Voiced by:** Sugihara Matsuri

## Shops
- [Official Website](https://web.archive.org/web/20120808081000/http://www.axis-games.net/axis/products/01kurukuru-coeur/index.html)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ004699.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=1236096)

## Releases
### Japanese
- **2009-06-26**: Kuru Kuru Coeur - [Official website](https://web.archive.org/web/20120808081000/http://www.axis-games.net/axis/products/01kurukuru-coeur/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=12352), [Getchu](http://www.getchu.com/soft.phtml?id=626765)
- **2010-06-04**: Kuru Kuru Coeur - Download Edition - [Official website](https://web.archive.org/web/20120808081000/http://www.axis-games.net/axis/products/01kurukuru-coeur/index.html), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ004699.html), [Gyutto](https://gyutto.com/i/item17121), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0041434/), [DL.Getchu](http://dl.getchu.com/i/item1003559), [DMM](https://dlsoft.dmm.co.jp/detail/views_0194/)
- **2023-09-29**: Nukicolle vol.46 - AXIS complete pack - [Getchu](http://www.getchu.com/soft.phtml?id=1236096)

## Tags
Sexual Content, ADV, Lesbian Sex, Genius Heroine, Multiple Endings, School Life Comedy, Teacher Heroine, Heroine with Glasses, Protagonist's Childhood Friend as a Heroine, Shy Heroine, Sex Change, Student Heroine, Harem Ending, Lesbian Heroine, Student Protagonist, Breaking the Fourth Wall, Other Perspectives, Boobjob, Scientist Heroine, Sounds of Copulation, Genderbent Sex, Relationship Chart, Heroine with Big Breasts, Gender Bending

## More Games from Axis
- [Kuru Kuru Coeur](https://pinovel.net/v1744)
- [Custard Cream Taiyaki](https://pinovel.net/v3245)
- [Kyuukyoku Mahou Shoujo Zettai☆Aneki](https://pinovel.net/v6554)
- [Bitch de Namaiki de Do S na Imouto kara Sei no Tehodoki o Ukeyou Game-han](https://pinovel.net/v13719)

---
*View the full details at [pinovel.net/v1744](https://pinovel.net/v1744).*

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