Seiyuu: Kanemaru Junichi Ninjutsu Gakuen fifth-year ro-gumi. 14 years old. O blood-type. Pisces. Member of the Library Committee. An upperclassman with a gentle and helpful personality that Rantarou and the others adore. His weakness is his indecisive nature. Usually seen in a pair with his friend Hachiya Saburou. In the original work Raizou’s hair is black; however, in the anime it is a bright brown. His namesake is from the proverb “付和雷同 (following blindly)”.