Do-ken, Do-ken. - Nanohana High School Animation Club, Douken - Nanohana Koukou Douga Kenkyuu, Douken. - Nanohana Koukou Douga Kenkyuu, Douken. - Nanohana Koukou Douga Kenkyuubu, どうけん, 動研。 ~菜ノ花高校動画研究部~