Akiko Himenokouji

She doesn’t know that Akito has no blood relationship with her and believes that they are twins; according to their deceased mother, Akiko will probably sexually assault her brother once she learns this fact. As for now, believing that they are blood related siblings, and respecting her brother’s will is the only barrier that stops her from doing so.

She is a fan of Kōichirō Shindo, and wishes her brother would be as aggressive as the brother in Kōichirō Shindo’s novel. However she has yet to notice that Kōichirō Shindo is her brother or that the beginning of Kōichirō Shindo’s novel is based on their relationship.