Main Characters Sakamoto 8823-senpai Acchan Erika Megumi Fujita Fukase-san Kana-chan Kenken Shigeru Kobayashi Shigemi Kubota Yoshinobu Kubota Aina Kuronuma Mario Maruyama-senpai Mii-chan Morita Yuuya Sera Tanaka-san Tsunoda-sensei Yagi-san