Rosho is described to be a good teacher and is loved by his students. He can also be strict, blunt, and even serious. During his early days, he was regarded as rebellious with a punk-like air, though he was kind at heart. Because his mother was very strict, Rosho spent most of his childhood studying and had no free time, resulting in his slightly rebellious spirit. His jokes were too convoluted that Sasara convinced him to become tsukkomi instead.