I'm Dan, the Boy Detective!! (ぼくは少年探偵ダン♪♪ Boku wa Shōnen Tantei Dan ) is a Japanese mystery manga by Hiroshi Gamo. It was serialized in Shueisha's "Weekly Shonen Jump" magazine from 1998 to 1999, which became the booming period of detective-genre manga such as the "Kindaichi Case Files" and "Detective Conan".