Narrates the events and cases encountered by Kaoru Utsumi, a rookie detective, and Manabu Yukawa, a university associate professor, while the two pair up to solve many mysterious cases.

Masaharu Fukuyamaas Manabu Yukawa
Ko Shibasakias Kaoru Utsumi
Yuriko Yoshitakaas Misa Kishitani
Kazuki Kitamuraas Kusanagi Shunpei
Yu Sawabeas Minoru Otagawa
Ikkei Watanabeas Hiromi Kuribayashi
Miki Mayaas Sakurako Jonouchi
Hiroshi Shinagawaas Shiro Yuge
Yuki Amamias Ayane Mashiba
Ryoko Hirosueas Yayoi Kanzaki
Masaharu Fukuyama
Yugo Kanno