Detective Goro Nanase and his colleagues of "Akatsuka Detective Office" are based in Shimo-Akazuka of Itabashi-ku, Tokyo. The detectives take on a string of challenging cases that no one else wants to take on.

• Eita Nagayama
• Kyoko Fukada
• Go Morita
• Tomoko Yamaguchi
• Sōichi Nakaoka
• Moemi Katayama
• Kenichi Yajima
• Yu Aoi