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Kyo Shirodaira

しろだいら きょう

Shirodaira Kyo

Pen Names: Heijō Kyō（Pen name derived from the historic Nara capital name）

Profile

Gender
Male
Born
1974-06-15 （Nara Prefecture, Japan）
Nationality
Japan
Languages
Japanese

Career

Occupations
Novelist, Mystery writer, Manga original story writer
Active Years
1997-

Education

Osaka City University
Degree: 学士
Country: Japan
Alma mater: Osaka City University

Awards

Honkaku Mystery Award
2012
Work: In/Spectre: Hagane Nanase
Organization: Honkaku Mystery Writers Club
Result: winner

Awards & Nominations

Works

Major Works

In/Spectre: Hagane Nanase

2011 Mystery

A novel blending mystery and the supernatural, centered on Kotoko Iwanaga and others; it explores clashes and syntheses between yokai phenomena and logical deduction.

Yokai/supernaturalDeductionRelations between humans and the paranormal
Adaptations
  • [Anime] In/Spectre (2020)
  • [Manga] In/Spectre (manga) (2015)
Translations
  • English translation available (series title: In/Spectre)

Spiral: Bonds of Reasoning (novel series)

2001 Mystery

A series of novels related to the Spiral franchise, containing strong mystery elements; tied to the manga serialization.

DeductionPuzzle-solvingHuman drama
Adaptations
  • [Manga] Spiral: Bonds of Reasoning (2000)

A Rose for the Detective

1998 Mystery

His debut novel, employing classical honkaku mystery techniques.

Honkaku mysteryTricksDetective

Blast of Tempest (original manga story)

2010 Fantasy/Mystery

A manga original story co-created with collaborators, blending mystery elements with fantasy in a long-running manga.

RevengeMysterySupernatural
Adaptations
  • [Anime] Blast of Tempest (2012)

Bibliography

  • In/Spectre: Hagane Nanase
  • In/Spectre: Sleeping Murder
  • In/Spectre Short Stories: The Appearance of Kotoko Iwanaga
  • Spiral: Swordmaster's Crime
  • A Rose for the Detective
  • Even on Rainy Days I Sumō with the Gods

Adaptations

  • In/Spectre — TV anime adaptation (2020 etc.)
  • Spiral: Bonds of Reasoning — Manga adaptation (Gangan Comics)
  • Blast of Tempest — Original manga story, adapted to anime

Translations of Works

  • In/Spectre — English translation (series title: In/Spectre)
  • Blast of Tempest — English manga releases exist

Style & Themes

Literary Style
Dialogue-driven, brisk proseBlend of humor and logical deduction
Recurring Motifs
Yokai and supernatural phenomenaConflict between logic and nonlogicUrban legends and folklore

Legacy

Known for fusing classical honkaku mystery techniques with supernatural tales; gained broad popularity through manga and anime adaptations, reaching younger audiences.

Academic Societies

  • Honkaku Mystery Writers Club

In Popular Culture

  • Became widely known through anime adaptation of In/Spectre
  • Original manga-story works contributed to cross-media presence

Quotes

  • Mystery is the act of deciphering the boundary between reality and fiction.
    Source: In/Spectre (2011) (2011)

Trivia

  • Pen name is a play on the historic Nara capital name Heijō-kyō.
  • Avid lover of invertebrates, especially jellyfish, and sometimes uses a jellyfish as a self-portrait.
  • Debuted after a short story "Ueta Tenshi" was published in 1997.