Naoto Takenaka

Riichi's father

Yuki Nagata

Riichi

Saki Takaoka

Miss Itô

Toshikazu Nakaba

Akihiro Shimizu

Nakamura

Yoshinori Yasuda

Sada

Setsuko Karasuma

Riichi's mother

Takeshi Caesar

Riichi's uncle

Matsunosuke Shofukutei

Riichi's grandfather