Yuusei Matsui

Birthplace: Saitama, Japan

He was an assistant of Yoshio Sawai, the mangaka of Bobobo-bo Bo-bobo (Shirota Masakage made a cameo appearance in Shinsetsu Bobobo-bo Bo-bobo).

His favourite manga series include Bobobo-bo Bo-bobo, JoJo no Kimyou na Bouken, and Kinnikuman.