Director Naoyoshi Shiotani decided on how to make the series' characters after hearing comments from The Pet Girl of Sakurasou director Atsuko Ishizuka.
Akane Tsunemori was created as the most relatable character who would question the setting from the audience's point of view and as the heroine who would come between the main character, Shinya Kogami, and his main rival, Shogo Makishima.