Yusei Matsui (松井優征, Matsui Yūsei) 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 also adapted into two live action films, and The Elusive Samurai. His favorite manga series include Bobobo-bo Bo-bobo, JoJo's Bizarre Adventure and Kinnikuman. In episode 25 of the Neuro anime, he has a cameo voice as a manga artist. Source: Wikipedia (en)