---
title: "Immoral Quartet ~4-nin no Seiyoku ga Karamiau, Ai to Netorare no Monogatari~"
description: "Humanity has gone nearly extinct. A vast number of people have died for no explainable reason. The everyday lives of all humans everywhere have been utterly sha"
image: "https://t.vndb.org/cv/35/82235.jpg"
---

# Immoral Quartet ~4-nin no Seiyoku ga Karamiau, Ai to Netorare no Monogatari~

![Immoral Quartet ~4-nin no Seiyoku ga Karamiau, Ai to Netorare no Monogatari~](https://t.vndb.org/cv/35/82235.jpg)

**Alternative Title:** Immoral Quartet ～4人の性欲が絡み合う、愛と寝取られの物語～

**Developer:** AVANTGARDE

**Release date:** Apr 28, 2021

**Platform:** Windows

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

**Rating:** 6.5/10 (120 votes)

## Description
Humanity has gone nearly extinct. A vast number of people have died for no explainable reason. The everyday lives of all humans everywhere have been utterly shattered.

Just one month after this horrible tragedy, there are only four sole survivors on a floating island south of the capital—two men and two women. They must work together to survive, gathering information and securing food in the morning and eating together at night.

However, as time passes, tensions begin to arise as the reality of their situation sinks in. Can the four of them work through these difficulties to survive the apocalypse?

[From [Steam](https://store.steampowered.com/app/2377410/)]

## Characters
### Haruto (陽翔)
- **Gender:** Male
- **Body:** Teen
- **Role:** Childhood Friend, Senpai, High School Student
- **Subject of:** Survival, Netori (their SO is stolen)

### Ariga Ryuuichi (有賀 隆一)
- **Gender:** Male
- **Measurements:** Height: 188cm
- **Hair:** Brown, Short, Spiky, Undercut
- **Eyes:** Red
- **Body:** Young-adult, Muscular, Tanned, Large Penis, Tall
- **Clothes:** Tank Top

### Chitose Mayu (千歳 真優)
- **Gender:** Female
- **Measurements:** Bust-Waist-Hips: 98-65-89cm, G cup
- **Hair:** Black, Waist Length+, Straight, Sidehair, Pubic Hair
- **Body:** Teen, Pale, Mole, Huge Breasts
- **Clothes:** School Uniform, Miniskirt, Shorts, Ribbon Tie, Formal Shirt
- **Eyes:** Blue
- **Personality:** Serious
- **Subject of:** Sexual Corruption
- **Voiced by:** Hanatsumi Neiro

### Tensuiji Airi (天水寺 愛莉)
- **Gender:** Female
- **Measurements:** Bust-Waist-Hips: 78-57-81cm
- **Hair:** Blond, Shoulder-length, Kemonomimi, Sidehair
- **Body:** Teen, Slim, Pale, Nail Polish, Medium Breasts
- **Clothes:** School Uniform, Cardigan, Miniskirt, Ribbon Tie, Ribbon Headband
- **Eyes:** Green, Tareme
- **Personality:** Sweets Lover
- **Voiced by:** Imaya Minami

## Shops
- [Official Website](https://kaguragamesjp.com/product/forsaken-quartet-patch/)
- [Steam](https://store.steampowered.com/app/2377410/)
- [GOG](https://www.gog.com/en/game/forsaken_quartet_unrated)
- [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ315165.html)

## Releases
### Japanese
- **2021-04-28**: Immoral Quartet ~4-nin no Seiyoku ga Karamiau, Ai to Netorare no Monogatari~ - [Official website](https://bwjohann.wixsite.com/website), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=31391), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ315165.html), [DMM](https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_195498/)
- **2021-04-28**: Immoral Quartet ~4-nin no Seiyoku ga Karamiau, Ai to Netorare no Monogatari~ Trial Edition - [Official website](https://bwjohann.wixsite.com/website), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=31391), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ315165.html), [DMM](https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_195498/)
- **2024-05-18**: Forsaken Quartet - Censored Version - [Steam](https://store.steampowered.com/app/2377410/), [SteamDB](https://steamdb.info/app/2377410/info/), [GOG](https://www.gog.com/en/game/forsaken_quartet), [GOG DB](https://gogdb.org/product/1482884382)
- **2024-05-18**: Forsaken Quartet - 18+ Uncensored Patch - [GOG](https://www.gog.com/en/game/forsaken_quartet_unrated), [GOG DB](https://gogdb.org/product/1733195932), [Kagura Games](https://www.kaguragames.com/product/forsaken-quartet-patch/)
- **2024-05-18**: Forsaken Quartet - 18+ Patch - [Official website](https://kaguragamesjp.com/product/forsaken-quartet-patch/)

### English
- **2022-09-14**: Immoral Quartet - [Patreon post](https://www.patreon.com/posts/71956361)
- **2024-05-18**: Forsaken Quartet - Censored Version - [Steam](https://store.steampowered.com/app/2377410/), [SteamDB](https://steamdb.info/app/2377410/info/), [GOG](https://www.gog.com/en/game/forsaken_quartet), [GOG DB](https://gogdb.org/product/1482884382)
- **2024-05-18**: Forsaken Quartet - 18+ Uncensored Patch - [GOG](https://www.gog.com/en/game/forsaken_quartet_unrated), [GOG DB](https://gogdb.org/product/1733195932), [Kagura Games](https://www.kaguragames.com/product/forsaken-quartet-patch/)
- **2024-05-18**: Forsaken Quartet - [Kagura Games](https://www.kaguragames.com/product/forsaken-quartet/)

### Chinese (simplified)
- **2024-05-18**: Forsaken Quartet - Censored Version - [Steam](https://store.steampowered.com/app/2377410/), [SteamDB](https://steamdb.info/app/2377410/info/), [GOG](https://www.gog.com/en/game/forsaken_quartet), [GOG DB](https://gogdb.org/product/1482884382)
- **2024-05-18**: Forsaken Quartet - 18+ Uncensored Patch - [GOG](https://www.gog.com/en/game/forsaken_quartet_unrated), [GOG DB](https://gogdb.org/product/1733195932), [Kagura Games](https://www.kaguragames.com/product/forsaken-quartet-patch/)

## Tags
Sexual Content, ADV, School, Rape, Completely Avoidable Rape, Male Protagonist, Multiple Endings, Protagonist's Childhood Friend as a Heroine, Nukige, Map Movement, Group Sex of One Male and Several Females, Student Heroine, Apocalypse, Netorare, Other Perspectives, Bad Ending(s), Completely Avoidable Netorare, Group Sex of Multiple Females and Males, Defloration, Conspiracy, Exhibitionism, Heroine with Tights, Bad Endings with Story, Missionary Position, Sixty-nine, Sounds of Copulation, Long Sexual Scenes, Date Display, Cunnilingus, Doggy Style, Fictional Modern Day Japanese Island, Armpit Sex, Female Ejaculation, Outdoor Sex, Naked Sprites, Deepthroat, Petplay, Netorare Type B, Anal Toys, Cowgirl, Reverse Cowgirl, Standing Sex, Sitting Sex, Ahegao, Biological Weapon, Epidemic, Voiced Thoughts, Quickie Fix Position, Sex at School, Heroine with Pubic Hair, Ladder Structure, Heroine Rape by Others, Heroine Having Sex with Others, Stranded, Masturbation with Water, Sexual Corruption, Children Ending, Single Boobjob, Single Footjob, Single Blowjob, Vaginal Masturbation, Pissing, Vaginal Fingering, Heroine with Huge Breasts, Heroine with Big Breasts, Early Sexual Content

## More Games from AVANTGARDE
- [Immoral Quartet ~4-nin no Seiyoku ga Karamiau, Ai to Netorare no Monogatari~](https://pinovel.net/v31006)

---
*View the full details at [pinovel.net/v31006](https://pinovel.net/v31006).*

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