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Butterfly Seeker


TitleButterfly Seeker
Original titleバタフライシーカー
LengthMedium (10 - 30 hours)
DeveloperSilky's Plus & Silky's Plus A5 Wagyuu
PublishersSilky's Plus
Nianba Rewrite Hanhuazu
Butterfly Seeker ~Chaos Nightmare~


The very large northern city of Shiraori, shrouded in fog in the summer and blanketed in snow in the winter, has been plagued by a series of brutal psychological crimes. The police set up a unit specifically to combat abnormal psychological crimes, but it was still not enough. Recently, they’ve been turning to promising youths who work undercover as student investigators. The insect gastronomy club at Shiraori Gakuen, nicknamed ‘Mushikui’, was specifically created for this purpose.

Yui could read a person’s thoughts just by observing their gestures and behaviour.
Chitose aspires to be a profiler with her excellent ability to retain key information.
Haya uses her superior physical prowess to battle criminals.
Keisuke possesses a special ability ‘butterfly seeker’ which allows him to see the indirect causes of a death just by touching the body.

Due to their special abilities, they were able to achieve some positive results. Then they received news that the mass serial killer ‘Spider’ that had terrorized the city six years ago had begun to move once more.

[From Hau~ Omochikaeri!]

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Toono Keisuke遠野 圭介
Birthday4 January
ClothesGlasses, School Uniform
PersonalityCautious, Serious, Smart
RoleHigh School Student, Non-blood-related Brother, Orphan, Psychic, School Extraordinary Club Member


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.

Main characters

Saotome Haya早乙女 羽矢
Birthday1 April
HairBlond, Curtained, Parted to Side, Shoulder-length, Wavy
EyesGreen, Slit Pupils, Tsurime
BodyFang, Pale, Slim, Teen
ClothesGyaru, Mary Jane, Over The Knee Socks, School Uniform
PersonalityBrave, Carefree, Hotblooded
RoleGamer, High School Student, Kouhai, Superhuman
Voiced byAji Sanma


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.

Tendou Yui天童 優衣
Birthday10 March
HairBlunt Bangs, Brown, Tiny Braid, Waist Length+
EyesBlue, Tareme
BodyPale, Slim, Teen
ClothesMary Jane, Ribbon Hair Accessory, School Uniform, Stockings
PersonalityAltruistic, Kind, Sensitive, Stubborn
RoleClassmate, High School Student, Telepath
Voiced byHanazawa Sakura


A gentle classmate that everyone likes. Is able to see through the psychology of others by reading their smallest actions and gestures.

Side characters

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Fukase Ayato深瀬 綾人
Voiced byKoi Tarou
Kiryuu Azusa桐生 梓
Birthday29 November
HairBrown, Pixie Cut, Shoulder-length, V Bangs
EyesRed, Tsurime
BodyPale, Slim, Young-adult
RolePolice, Teacher
Voiced byMisonoo Mei


Advisor of the insect gastronomy club. She is actually a police officer from a special department that investigates abnormal psychological crimes.

Kokonoe Touko九重 透子
Birthday24 October
HairBlack, Curtained, No Bangs, Parted in Middle, Waist Length+
BodyPale, Slim, Young-adult
ClothesCardigan, Loafers
RoleNon-blood-related Sister, Older Sister, Prisoner
Voiced byKawashima Rino


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...

No image

Kurusu Kanae来栖叶絵
Engages inPainting
Voiced byOkuyama Ayumi