Based on Tokuya Higashigawa’s bestselling novels, the manga was illustrated by Aya Kawase and serialized in Petit Comic in 2011, spanning two volumes.

The story features Reiko Hōshō, a wealthy heiress working secretly as a rookie detective, and her sharp-tongued butler, Kageyama, who solves cases with brilliant deductions while insulting her intelligence.

Kyoichiro Kazamatsuri, Reiko's incompetent superior, acts as a comedic foil to Kageyama's analytical genius. Franchise Expansion and Style

The manga, known in English as The Dinner Table Detective , is a verified adaptation of the award-winning mystery novel series by Tokuya Higashigawa . While the franchise is widely celebrated for its live-action drama and recent 2025 anime, the manga remains a core part of its cross-media success, offering a distinct visual take on the witty, "after-dinner" deduction format. Series Overview and Key Characters