---
title: "Kusari"
description: "\"If only we hadn't rescued him...\"  There is a high-speed experimental ship, \"Vasilisk.\" The protagonist, Kouzuki Kyousuke, and his friends happened to be on it"
image: "https://t.vndb.org/cv/48/92348.jpg"
---

# Kusari

![Kusari](https://t.vndb.org/cv/48/92348.jpg)

**Alternative Title:** 鎖

**Aliases:** 鎖－クサリ－, クサリ, Kusari - Chain, 鎖－くさり－

**Developer:** Leaf

**Release date:** Sep 22, 2005

**Platform:** Windows

**Language:** Japanese

**Rating:** 7.0/10 (96 votes)

## Description
*"If only we hadn't rescued him..."*

There is a high-speed experimental ship, "Vasilisk." The protagonist, Kouzuki Kyousuke, and his friends happened to be on its trial voyage. It was summer at that time. Because the trial voyage's supervisor was also the mother of the protagonist's childhood friend, Kyousuke and his friends were spending their time as if they were on a cruise.

One day, the ship came across an ocean investigation ship adrift on the high seas. There was only one person on its board: Ishida Youichi, who claimed to be an oceanographer. He was a well-mannered young man, so there were no particular issues with him. However, as soon as they took him abroad, the ship's navigation instruments began to fail one by one.

And when the sun was hidden under the veil of darkness, an incident occurred—there was a sudden blackout. Once the electricity was restored, a cruel scene appeared before the eyes of Kyousuke and his friends. There was a woman tied to a chandelier. She was in terrible shape, as if she had been tormented mercilessly.

*That woman was the supervisor, Orihara Shino...*

[Translated from the [official site](https://leaf.aquaplus.jp/product/ksr/)]

## Characters
### Kouzuki Kyousuke (香月 恭介)
The male protagonist of the game. A high school student who has lost his father at a young age. The tender-hearted elder brother of Chihaya, and reliable guy among his friends.

- **Gender:** Male
- **Body:** Teen
- **Engages in:** Fighting, Planning
- **Personality:** Ore, Kind
- **Role:** Full Brother, High School Student, Older Brother
- **Voiced by:** Nakamoto Shinsuke

### Ayanobe Karen (綾之部 可憐)
The eldest daughter of a noble family and sister of Tamami. A brash elitist with a large ego.

[From [url=http://en.wikipedia.org/wiki/Kusari]Wikipedia[/url]]

- **Gender:** Female
- **Hair:** Black, Brown, Waist Length+, Straight, Spiky Bangs
- **Body:** Teen, Slim, Pale
- **Eyes:** Amber, Tsurime
- **Clothes:** Dress, Headband, Collar, Ribbon Hair Accessory
- **Personality:** Tsundere, Arrogant, Stubborn
- **Role:** Daughter, Full Sister, Wealthy, Popular, Older Sister, Ojousama
- **Subject of:** Torture, Confinement
- **Engages in:** Bondage
- **Voiced by:** Takana Yuka

### Ayanobe Tamami (綾之部 珠美)
The younger sister of Karen, although she is only one year younger than her sister, she looks and acts many years younger. Despite her immaturity and propensity to play pranks, she is quite clever at MacGyver-ing items.

[From [url=http://en.wikipedia.org/wiki/Kusari]Wikipedia[/url]]

- **Gender:** Female
- **Hair:** Ahoge, Short, Grey, Thick Eyebrows
- **Eyes:** Brown, Tareme
- **Body:** Slim, Pale, Kid, Younger Appearance, Fang
- **Clothes:** Dress, Sports Shoes, Belt, Collar, Swimsuit, Strap-on Dildo, Clothing with Ribbons, Shimapan
- **Subject of:** Mind Control, Torture, Confinement
- **Role:** Daughter, Full Sister, Wealthy, Younger Sister, Ojousama
- **Engages in:** Teasing, Investigation
- **Personality:** Genius, Immature, Mischievous
- **Voiced by:** Akizuki Mai

### Katagiri Megumi (片桐 恵)
A reserved and precocious girl. Because she tries hard not to display her feelings, she is hard to read. She is also one of Akeno's closest friends and also her childhood friend.

[From [url=http://en.wikipedia.org/wiki/Kusari]Wikipedia[/url]]

- **Gender:** Female
- **Measurements:** Weight: 44kg
- **Hair:** Bun, Ponytail, Teal, Spiky Bangs
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Glasses, Knee-high Socks, Bandages, One Piece Swimsuit, Panties, Hair Tie, Torn Clothing, Decorative Belt
- **Items:** Handgun
- **Personality:** Stoic, Reserved, Smart, Mature, Emotional
- **Role:** Friend, Childhood Friend, Classmate
- **Subject of:** Torture, Injury, Confinement, Avoidable Death (obsolete), Hospitalization, Survival, Catheter
- **Engages in:** Investigation, Bondage, Escape From Confinement
- **Eyes:** Garnet, Tsurime
- **Voiced by:** Hokuto Yuria

### Kishida Youichi (岸田 洋一)
A man found adrift at sea. Claiming to be a marine researcher, he boards the ship, and murders the ship's crew. A fearsome person skilled at psychological manipulation and terror tactics.

- **Gender:** Male
- **Hair:** Black, Ponytail, Eye Covering
- **Role:** Villain, Antagonist
- **Body:** Adult, Muscular
- **Engages in:** Torture
- **Personality:** Genius, Violent, Cruel, Manipulative, Sociopath
- **Subject of:** Fake Death
- **Eyes:** Hosome
- **Voiced by:** Achilles Ken

### Kouzuki Chihaya (香月 ちはや)
Kyosuke's younger sister. Although constitutionally weak, she is very strong-willed girl, because of the loss of her father at a young age. Highly attached to her brother.

[From [url=http://en.wikipedia.org/wiki/Kusari]Wikipedia[/url]]

- **Gender:** Female
- **Hair:** Pink, Odango, Wavy, Blunt Bangs
- **Body:** Teen, Slim, Pale
- **Clothes:** Dress, Skirt, Tank Top, Bracelet, Hair Tie, School Swimsuit
- **Role:** Full Sister, Half-orphan, Younger Sister
- **Subject of:** Torture, Injury, Confinement, Weakness
- **Engages in:** Teasing, Investigation, Bondage
- **Items:** Bag
- **Personality:** Stubborn, Energetic, Mature, Brother Complex
- **Eyes:** Garnet, Tareme
- **Voiced by:** Ueto Ryuu

### Orihara Akeno (折原 明乃)
A long-time childhood friend of Kyosuke, and daughter of Shino. A gentle girl with strong convictions.

[From [url=http://en.wikipedia.org/wiki/Kusari]Wikipedia[/url]]

- **Gender:** Female
- **Hair:** Brown, Ahoge, Shoulder-length, Spiky Bangs, Hair Beads
- **Eyes:** Brown, Tareme
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Knee-high Socks, Collar, Bikini, Hairpin, Blindfold, Panties
- **Personality:** Carefree, Outgoing, Friendly, Kind, Stubborn
- **Subject of:** Mind Control, Torture, Confinement, Sexual Harassment
- **Role:** Daughter, Childhood Friend
- **Engages in:** Investigation, Bondage
- **Voiced by:** Gogyou Nazuna

### Hayama Tomonori (早間 友則)
Kyosuke's best friend by circumstance of sharing the same interests. He is very vain and patronizing person, and very self-centered.

- **Gender:** Male
- **Hair:** Blond
- **Body:** Teen, Slim, Pale
- **Eyes:** Grey
- **Clothes:** Earrings, Cross Necklace, Polo Shirt
- **Personality:** Ore, Arrogant, Ore-sama
- **Voiced by:** Andou Masaki

### Orihara Shino (折原 志乃)
Mother of Akeno, and the person in charge of the Basilisk's test voyage. She is the one that invites Kyousuke and his friends on the ship. A very accepting and generous woman.

- **Gender:** Female
- **Hair:** Violet, Ponytail, Parted to Side
- **Body:** Slim, Pale, Young-adult
- **Eyes:** Grey, Hosome
- **Clothes:** Wristband, Pantyhose, Lab Coat, Choker
- **Personality:** Friendly, Relaxed
- **Role:** Mother, Engineer, Management
- **Subject of:** Torture
- **Voiced by:** Shinomiya Kaoru

## Shops
- [Official Website](http://leaf.aquaplus.co.jp/product/ksr/)
- [Getchu](http://www.getchu.com/soft.phtml?id=178421)

## Releases
### Japanese
- **2005-09-22**: Kusari - [Official website](http://leaf.aquaplus.co.jp/product/ksr/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=6083), [Getchu](http://www.getchu.com/soft.phtml?id=178421)
- **2011-10-28**: Kusari - Download Edition - [Official website](http://leaf.aquaplus.co.jp/product/ksr/), [Getchu](http://www.getchu.com/soft.phtml?id=178421), [DMM](https://dlsoft.dmm.co.jp/detail/aquap_0004/)

## Tags
ADV, Pistol Combat, Sword Combat, Combat with Spears, Knife/Dagger Combat, Combat Archery, Blood-related Brother/Sister Incest, Kuudere Heroine, Genius Heroine, Imouto-type Heroine, Unavoidable Rape, Male Protagonist, Protagonist with Voice Acting, Multiple Endings, Murder Mystery, Loli Heroine, Lolicon, Early Branching Plot, Heroine with Glasses, Classic Tsundere Heroine, Deredere Heroine, Protagonist's Childhood Friend as a Heroine, Sexual Slavery, Bondage, Protagonist's Blood-related Sister as a Heroine, Madness, Confinement, Intrigue, Suspense, Battle of Wits, Student Heroine, Early Sexual Content, Adult Heroine, High Amounts of Rape, Netorare, Student Protagonist, Lesbian Rape, Urination Fetish, Vibrators, Defloration, Thriller, Heroine with Swimsuits, Heroine with Visible Panties, Desperation, Pretending Heroine, Twin Tail Heroine, Missionary Position, Blowjob, Torture, Blood-related Mother/Daughter Incest, Ship, Heroine with Ahoge, Multiple Penetration, Erotic Spanking, Object Insertion, More Than Seven Endings, Brocon Heroine, Text-only Sexual Content, Doggy Style, Body Writing, Full Chastity Belt, Clothing Damage, Erotic Beating (Non-Consensual), Deepthroat, Mindbreak, Play Piercing, Wax Play, Sitting Sex, Clamps (BDSM), Pain Only Rape, Heroine Having Sex with Others, Single Blowjob, Pissing, Anal Sex, Straight Lolicon, Protagonist's Full Sister as a Heroine, Protagonist's Younger Sister as a Heroine, Strap-on Dildos, Ahegao, Vaginal Fingering, Female Ejaculation, Blood-related Sister/Sister Incest, Public Masturbation, Tsundere Heroine, Sex in Water, Heroine with Small Breasts (Non-Loli), Bukkake, Non-twin Heroine Sisters, Mouth Gag, Reverse Rape, Mind Control, Pissing on Others, Sexual Blindfold, Defloration by Others, Sex in Public Places, Cunnilingus, Urethral Intercourse, Anal Fingering, Sexual Slavery (Choukyou Variation), Piss Drinking, Rape, Vaginal + Anal Object Insertion, Mother Support Character, Ojousama Heroine, Lesbian Sex, Only Virgin Heroines, Horror

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---
*View the full details at [pinovel.net/v181](https://pinovel.net/v181).*

```json
{"@context":"https://schema.org","@type":"VideoGame","@id":"https://pinovel.net/v181#game","name":"Kusari","description":"\"If only we hadn't rescued him...\"  There is a high-speed experimental ship, \"Vasilisk.\" The protagonist, Kouzuki Kyousuke, and his friends happened to be on it","url":"https://pinovel.net/v181","image":"https://t.vndb.org/cv/48/92348.jpg","author":{"@type":"Organization","name":"Leaf"},"aggregateRating":{"@type":"AggregateRating","ratingValue":"7.0","bestRating":10,"worstRating":1,"ratingCount":96}}
```