Yusei Matsui is a Japanese manga artist. He was an assistant of Yoshio Sawai, the manga artist of ''Bobobo-bo Bo-bobo''. Three of his manga ''Neuro: Supernatural Detective'', ''Assassination Classroom'', and ''The Elusive Samurai'' were serialized in ''Weekly Shōnen Jump''. ''Neuro'' was adapted into an anime television series, as well as ''Assassination Classroom'' which was... Wikipedia