Series
Zenigata Rei (Kaho) is a a middle school student and math prodigy that also works as a secret detective. She uses her IQ of 180 to solve the mysteries of various difficult cases one after another.
Kaho
Zenigata Rei
Shinji Yamashita
Jun Godai
Takeshi Kongochi
Shibata Taro
Tomoyuki Furumaya
Tomoyuki Furumaya, Hori Hideki, Hirohisa Sasaki, Hiroshi Ando
Makoto Hayashi
