Main Characters Otonomiya Saku 12 main appearances Mitsutsuka Hinata 12 main appearances Kagura Sousuke 10 main appearances Outa Uta 10 main appearances Ryo Saotome 10 main appearances Keishi Harumoto 10 main appearances Enjouji Mike 9 main appearances Akizuki Kai 9 main appearances Marume Chiguma 8 main appearances