Ron KamonohashiRon Kamonohashi.

Ron Kamonohashi: Deranged Detective (Japanese: 鴨乃橋ロンの禁断推理, Hepburn: Kamonohashi Ron no Kindan Suiri; lit. 'Ron Kamonohashi's Forbidden Deductions') is a Japanese web manga series written and illustrated by Akira Amano. It was serialized in Shueisha's Shōnen Jump+ from October 2020 to July 2025, with its chapters collected into 19 tankōbon volumes as of October 2025. Shueisha also simultaneously publishes the series in English on the Manga Plus online platform.