---
title: "Butterfly Seeker ~Chaos Nightmare~"
description: "Read about Butterfly Seeker ~Chaos Nightmare~ visual novel."
image: "https://t.vndb.org/cv/77/98177.jpg"
---

# Butterfly Seeker ~Chaos Nightmare~

![Butterfly Seeker ~Chaos Nightmare~](https://t.vndb.org/cv/77/98177.jpg)

**Alternative Title:** バタフライシーカー ～カオス・ナイトメア～

**Developer:** SILKY'S PLUS A5 Wagyuu

**Release date:** Aug 31, 2018

**Platform:** Windows

**Language:** Japanese

**Rating:** 7.2/10 (60 votes)

## Characters
### Toono Keisuke (遠野 圭介)
A sophomore who is the "leader" of the insect gastronomy club. He has an ability called "Butterfly Seeker," which allows him to visualize the cause of an incident.

- **Gender:** Male
- **Birthday:** 4 January
- **Hair:** Black, Short
- **Eyes:** Brown
- **Body:** Teen
- **Clothes:** School Uniform, Glasses, Straitjacket
- **Role:** Orphan, Non-blood-related Brother, High School Student, Psychic, Secret Identity, School Extraordinary Club Member
- **Subject of:** Assault, Injury, Kidnapping, Avoidable Death (obsolete), Hospitalization, Psychological Trauma, Being Drugged, Grief, Bridal Carry, Delusion
- **Personality:** Boku, Cautious, Kind, Smart, Serious

### Himuro Chitose (氷室 千歳)
A senior who aims to become a profiler. She has good analytical skills but cannot read other people's emotions very well. Lives in the same apartment as Toono.

[spoiler]Her parents were murdered while she was confined in a closet. Tonoo managed to talk to her on the scene and recruited her to Mushikui afterwards.[/spoiler]

- **Gender:** Female
- **Birthday:** 6 September
- **Hair:** Blue, Ponytail, Twin Tails, Waist Length+, V Bangs
- **Body:** Teen, Slim, Pale, Big Breasts
- **Clothes:** School Uniform, Sweater, Trousers, Apron, Trench Coat, Dress, Glasses, Knee-high Socks, Baseball Cap, Corset, Leggings, Mary Jane
- **Role:** Orphan, Senpai, University Student, High School Student, Secret Identity
- **Eyes:** Blue, Garnet, Tsurime
- **Personality:** Low Self-esteem, Timid, Clumsy, Genius, Smart, Watashi, Keigo
- **Subject of:** Child Abuse, Psychological Trauma, Mental Breakdown
- **Engages in:** Cleaning, Investigation, Disguise, Painting, Computering, Graduation, Avoidable Murder
- **Voiced by:** Kusuhara Yui

### Otonashi Rinko (音無 凛子)
- **Gender:** Female
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Headband, Cardigan, Knee-high Socks, Mary Jane
- **Eyes:** Violet
- **Personality:** Stoic, Taciturn, Watashi
- **Role:** Kouhai, Psychic, Secret Identity, Younger Sister
- **Hair:** Eye Covering, Grey, Parted to Side, Sidehair
- **Voiced by:** Sagami Ren

### Saotome Haya (早乙女 羽矢)
A first-year with extraordinary physical strength. She hates criminals, and would prefer to fight rather than investigate. Has a large network of friends and is good at gathering information.

- **Gender:** Female
- **Birthday:** 1 April
- **Hair:** Blond, Wavy, Curtained, Shoulder-length, Parted to Side
- **Body:** Teen, Slim, Pale, Fang, Big Breasts
- **Clothes:** School Uniform, Apron, Cravat, Brooch, Shrug, Over The Knee Socks, Mary Jane
- **Engages in:** Cooking, Bridal Carry
- **Personality:** Hotblooded, Carefree, Atashi, Brave, Whimsical
- **Eyes:** Green, Tsurime, Slit Pupils
- **Role:** Kouhai, High School Student, Superhuman, Gamer, Secret Identity, Superstrength
- **Items:** Umbrella
- **Subject of:** Avoidable Death (obsolete), Grief, Completely Avoidable Death
- **Voiced by:** Aji Sanma

### Tendou Yui (天童 優衣)
A gentle classmate that everyone likes. Is able to see through the psychology of others by reading their smallest actions and gestures.

- **Gender:** Female
- **Birthday:** 10 March
- **Hair:** Brown, Waist Length+, Blunt Bangs, Tiny Braid
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Stockings, Ribbon Hair Accessory, Mary Jane
- **Eyes:** Blue, Tareme
- **Engages in:** Justifiable Homicide
- **Personality:** Altruistic, Kind, Stubborn, Watashi, Sensitive
- **Role:** Classmate, High School Student, Secret Identity, Telepath
- **Subject of:** Avoidable Death (obsolete)
- **Voiced by:** Hanazawa Sakura

### Fukase Ayato (深瀬 綾人)
Toono Keisuke's classmate. "Serial killer maniac", likes to collect items related to serial killers.

- **Gender:** Male
- **Hair:** Short, Orange
- **Body:** Teen
- **Clothes:** School Uniform, Necktie, Shirt
- **Eyes:** Violet
- **Personality:** Ore, Friendly
- **Subject of:** Injury, Kidnapping, Avoidable Death (obsolete), Hospitalization
- **Role:** Classmate, Wealthy
- **Engages in:** Not Sexually Involved
- **Voiced by:** Koi Tarou

### Kiryuu Azusa (桐生 梓)
Advisor of the insect gastronomy club. She is actually a police officer from a special department that investigates abnormal psychological crimes.

- **Gender:** Female
- **Birthday:** 29 November
- **Hair:** Brown, Short, Straight, V Bangs
- **Body:** Slim, Pale, Young-adult
- **Eyes:** Red, Tsurime
- **Clothes:** Suit
- **Engages in:** Drinking
- **Role:** Teacher, Police, Secret Identity
- **Subject of:** Illness, Kidnapping, Impersonation
- **Personality:** Atashi
- **Voiced by:** Misonoo Mei

### Kokonoe Touko (九重 透子)
Keisuke's older sister through adoption. Originally a distant relative, Keisuke's parents took Touko into their care after her parents died. Touko is a delicate and kind-hearted person who was Keisuke's first love, but she was involved in a certain case six years ago...

- **Gender:** Female
- **Birthday:** 24 October
- **Hair:** Black, Waist Length+, Wavy, Curtained, Parted in Middle
- **Body:** Slim, Pale, Young-adult
- **Clothes:** Cardigan, Blouse, Hospital Gown, Loafers, Straitjacket
- **Items:** Knife
- **Role:** Non-blood-related Sister, Older Sister, Prisoner, Serial Killer
- **Subject of:** Psychosis, Confinement, Hospitalization, Delusion
- **Personality:** Kind, Watashi, Observant
- **Eyes:** Garnet
- **Engages in:** Escape From Confinement, Self-harm, Avoidable Murder, Avoidable Suicide
- **Voiced by:** Kawashima Rino

### Niiyama Arisa (新山 亜里沙)
- **Gender:** Female
- **Hair:** Brown, Shoulder-length
- **Role:** Student
- **Eyes:** Amber
- **Body:** Young-adult
- **Clothes:** Jacket, Necklace, Blouse
- **Personality:** Friendly, Absentminded, Atashi
- **Subject of:** Confinement, Impersonation
- **Voiced by:** Sugihara Matsuri

### Ogiwara Hitomi (荻原 仁美)
- **Gender:** Female
- **Body:** Adult
- **Personality:** Pretending
- **Engages in:** Murder, Disguise, Impersonation
- **Role:** Detective, Criminal Accomplice
- **Subject of:** Disappearance
- **Voiced by:** Tsubakino Nao

### Sagara Mitsuki (相良 充希)
Voiced by TAKAO

- **Gender:** Male
- **Hair:** Brown
- **Engages in:** Cross-dressing
- **Clothes:** Trousers, Necktie, Shirt, Vest, Lab Coat
- **Eyes:** Blue
- **Body:** Adult
- **Items:** Knife
- **Role:** Medical Doctor, Serial Killer
- **Personality:** Womanizer, Moody

### Otonashi Ryouko (音無 涼子)
- **Gender:** Female
- **Hair:** Shoulder-length
- **Body:** Young-adult
- **Personality:** Carefree
- **Role:** Betrothed, Older Sister
- **Engages in:** Murder, Attempted Murder
- **Clothes:** Hairpin, Tracksuit
- **Subject of:** Pre-Story Death, Impersonation
- **Voiced by:** Yumeno Botan

## Shops
- [Official Website](http://www.silkysplus.jp/game/butterflyfd/index.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=1010448)

## Releases
### Japanese
- **2018-08-31**: Butterfly Seeker ~Chaos Nightmare~ Package Edition - [Official website](http://www.silkysplus.jp/game/butterflyfd/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=26934), [Melonbooks.co.jp](https://www.melonbooks.co.jp/detail/detail.php?product_id=378953), [Getchu](http://www.getchu.com/soft.phtml?id=1010447)
- **2018-08-31**: Butterfly Seeker + FD ~Chaos Nightmare~ Set Edition - [Official website](http://www.silkysplus.jp/game/butterflyfd/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=26934), [Getchu](http://www.getchu.com/soft.phtml?id=1010448)
- **2018-09-28**: Butterfly Seeker ~Chaos Nightmare~ Download Edition - [Official website](http://www.silkysplus.jp/game/butterflyfd/index.html), [DMM](https://dlsoft.dmm.co.jp/detail/silkysall_0026/)
- **2019-05-31**: Butterfly Seeker + FD ~Chaos Nightmare~ Set Download Edition - [Official website](http://www.silkysplus.jp/game/butterflyfd/index.html), [DMM](https://dlsoft.dmm.co.jp/detail/silkysall_0032pack/)

## Tags
ADV, Genius Heroine, Male Protagonist, Late Sexual Content, Detective Work, Protagonist with Glasses, Other Perspectives, Gyaru Heroine, High School Student Heroine, Sex with Protagonist Only, Heroine with Big Breasts, Butterflies, Linear Plot, Murder Mystery, Low Sexual Content, Choices with 4 or More Options

## More Games from SILKY'S PLUS A5 Wagyuu
- [Neyuki no Gen'ei -Shirahanasou no Hitobito-](https://pinovel.net/v16563)
- [Butterfly Seeker](https://pinovel.net/v22027)
- [Butterfly Seeker ~Chaos Nightmare~](https://pinovel.net/v23223)

---
*View the full details at [pinovel.net/v23223](https://pinovel.net/v23223).*

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