---
title: "Gurosis!"
description: "Read about Gurosis! visual novel."
image: "https://t.vndb.org/cv/55/71355.jpg"
---

# Gurosis!

![Gurosis!](https://t.vndb.org/cv/55/71355.jpg)

**Alternative Title:** ぐろしす！

**Aliases:** Grotesque Black My Sister

**Developer:** Yoogle Syndicate

**Release date:** Apr 21, 2018

**Platform:** Windows, Website

**Language:** Japanese

## Characters
### Ueno Tatsuki (上野 達樹)
- **Gender:** Male
- **Hair:** Violet, Short
- **Eyes:** Hidden
- **Role:** Son, High School Student, Unpopular, Older Brother

### Ueno Chika (上野 チカ)
- **Gender:** Female
- **Hair:** Blue, Shoulder-length
- **Eyes:** Blue
- **Role:** Younger Sister
- **Subject of:** Bimbofication

## Shops
- [Official Website](http://yooglesyndicate.com/game/gurosis/gurosis.html)

## Releases
### Japanese
- **2018-04-21**: Gurosis! - [Official website](http://yooglesyndicate.com/game/gurosis/gurosis.html), [Freegame Mugen](https://freegame-mugen.jp/adventure/game_7102.html), [NovelGame](https://novelgame.jp/games/show/926)

## Tags
Male Protagonist, Nameable Protagonist, No Sexual Content, Ganguro Heroine, Protagonist's Younger Sister as a Heroine, Bimbofication

## More Games from Yoogle Syndicate
- [Frust! Revolution](https://pinovel.net/v5003)
- [Doushiyou mo nai Boku ni Akuma ga Oritekita](https://pinovel.net/v5815)
- [Sayonara C.C Summer Days](https://pinovel.net/v5002)
- [Frust! Revolution 2nd Geek](https://pinovel.net/v47540)
- [Gurosis!](https://pinovel.net/v47539)

---
*View the full details at [pinovel.net/v47539](https://pinovel.net/v47539).*

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```