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Seiichiro Oyama

おおやま せいいちろう

Oyama Seiichiro

Profile

Gender
Male
Born
1971-01-01 （Warabi, Saitama, Japan）
Nationality
Japan
Languages
Japanese
Residence History
Warabi, Saitama (birthplace) → Fukuyama, Hiroshima (childhood) → Kyoto (studies)

Career

Occupations
Novelist, Translator
Active Years
2000-
Affiliations
Honkaku Mystery Writers Club
Memberships
Honkaku Mystery Writers Club

Education

Kyoto University
Faculty of Law / Law
Period: 在学中中退
Country: Japan
Belonged to the mystery fiction study group while enrolled; later withdrew before graduation.

Awards

Honkaku Mystery Award (Novel)
2013
Work: The Collector of Locked Rooms (Mishitsu Shūshūka)
Category: 小説部門
Organization: Honkaku Mystery Writers Club
Result: 受賞
Japan Detective Writers' Club Award (Short Story)
2022
Work: The Clockmaker Detective and the Antinomy of Alibis
Category: 短編部門
Organization: The Mystery Writers of Japan
Result: 受賞

Awards & Nominations

Works

Major Works

Mishitsu Shūshūka (The Collector of Locked Rooms)

2012 Mystery

A collection of locked-room mystery stories centered around the theme of a 'collector' of sealed-room puzzles.

locked roomspuzzle trickslogical deduction
Adaptations
  • [TV drama] Crime Archive: The Scarlet Saeko Series 'Red Museum' (TV adaptations related to Oyama's works) (2016)
Translations
  • 密室收藏家 (Traditional Chinese edition)

Alibi Kuzushi Ukagaimasu (I'll Break Your Alibi)

2018 Mystery (short story collection)

A short story collection featuring the Clockmaker Detective series, each story unraveling elaborate alibi tricks.

alibisclocksdetective short stories
Adaptations
  • [TV drama] Aribai Kuzushi Ukagaimasu (TV drama) (2020)
Translations
  • 绝对不在场证明 (Simplified Chinese edition)

Red Museum

2015 Mystery (linked short stories)

A linked short-story collection themed around the color red; multiple pieces portray interconnected incidents and settings.

linked shortsmemorycrime history
Adaptations
  • [TV drama] Crime Archive: 'Red Museum' (TV drama) (2016)
Translations
  • 赤色博物館 (Traditional Chinese edition)

Watson-ryoku (The Power of Watson)

2020 Mystery (short story collection)

A collection of short stories focusing on detective assistants and the act of deduction, noted for some experimental structures.

detective rolespractice of deductionshort fiction

Alphabet Puzzlers

2004 Mystery

Published as an early work emphasizing puzzle-like tricks; contributed to his emergence as a notable young writer.

logical trickspuzzle elements

Bibliography

  • Alphabet Puzzlers (2004)
  • Kamen Genshoukyoku (2006)
  • Mishitsu Shūshūka (2012)
  • Red Museum (2015)
  • I'll Break Your Alibi (2018)
  • Watson-ryoku (2020)
  • Temporary Great Detective: Watson-ryoku (2024)

Adaptations

  • Crime Archive: 'Red Museum' (TV drama adaptations)
  • Aribai Kuzushi Ukagaimasu (TV drama)

Translations by Author

  • Translation: (Edmund Crispin) - Japanese title: 永久の別れのために
  • Translation: (Nicholas Blake) - Japanese title: 死の殻

Translations of Works

  • 密室收藏家 (Traditional Chinese, Taiwan)
  • 诡计博物馆 / 赤色博物館 (Chinese editions)
  • 绝对不在场证明 (Simplified Chinese edition)

Style & Themes

Literary Style
Puzzle-oriented classical mystery styleMeticulous structures centered on short fiction
Recurring Motifs
locked roomsalibisclocks and time

Legacy

A writer grounded in classical puzzle-mystery traditions, acclaimed for contemporary short-story craftsmanship. His works have been adapted for TV and translated abroad, securing a place in modern Japanese mystery fiction.

Academic Societies

  • Honkaku Mystery Writers Club

Archives

  • National Diet Library (holds published works)

In Popular Culture

  • TV Asahi drama 'Aribai Kuzushi Ukagaimasu' (based on his work)
  • TBS drama 'Red Museum' (based on his works)

Trivia

  • Born in 1971 in Warabi, Saitama.
  • Attended Kyoto University and belonged to a mystery fiction circle; later withdrew before graduating.
  • Debuted with a work published on an e-book site: 'She Would Never Kill Patience'.
  • Maintains an X (formerly Twitter) account (@oyama_seiichiro).