Yūsei Matsui (松井優征 Matsui Yūsei?, born January 31, 1981 in Saitama, Japan) is a manga artist known for manga Majin Tantei Nougami Neuro. He was an assistant of Yoshio Sawai, the manga artist of Bobobo-bo Bo-bobo (Shirota Masakage made a cameo appearance in Shinsetsu Bobobo-bo Bo-bobo).
