Skip to the content
Author

Otsuichi

Otsuichi is the pen name of Hirotaka Adachi, a Japanese writer and filmmaker. He is a member of the Mystery Writers of Japan and the Honkaku Mystery Writers Club of Japan. He made his debut with Summer, Fireworks and My Corpse while still in high school.

Also recorded as Hirotaka Adachi

Otsuichi

5 versions of Otsuichi's signatures

Otsuichi · 《殺死瑪麗蘇》 · Public domain

Name
Otsuichi 乙一
Birth Name
Hirotaka Adachi (安達 寛高)
Born
21 October 1978
Birthplace
Fukuoka Prefecture, Japan
Occupation
Novelist
Education
Toyohashi University of Technology
Awards
JUMP Novel Grand Prix (1996) Honkaku Mystery Award (2003) 小学館児童出版文化賞 (2012)
Nationality
Japan
Known for
Goth
Honours
Honkaku Mystery Grand Prize
Languages
Japanese

VALÉORINE Encyclopedia

VALÉORINE documentary reading

Documentary summary

Otsuichi is the pen name of Hirotaka Adachi, a Japanese writer and filmmaker. He is a member of the Mystery Writers of Japan and the Honkaku Mystery Writers Club of Japan. He made his debut with Summer, Fireworks and My Corpse while still in high school.

Admitted source layer · organised and presented by VALÉORINE

Reference Check

Propose documentary evidence for Otsuichi. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.

Sign in to contribute

World of VALÉORINE

Documentary connections

Only confirmed graph relationships appear here. Images are shown only when their identity and reuse rights both pass the documentary gate.

Documentary evidence

Documentary basis

Authority files

wikidata · Q906814 · wikipedia · Otsuichi

In this article

  1. 01Biography
  2. 02Reception, influence and legacy
  3. 03Archives and collections
  4. 04Honours and memberships
  5. 05Notes, references and evidence

The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 18 August 2026.

Elsewhere in Books

For owners

Own a work by Otsuichi?

A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.