Akihiko Usami (宇佐見 秋彦, Usami Akihiko?) is a twenty-eight year old popular author of fiction and erotic BL novels, and the youngest recipient of the distinguished Naomori Award. His nickname is "Usagi", which means "rabbit" in Japanese. Usagi is Misaki's tutor for the upcoming entrance exams, and a very close friend of Takahiro (he, in fact, harboured an unrequited love for Takahiro for a long time). He and Hiroki were childhood friends. Shortly after meeting Misaki, he finds that Takahiro has gotten engaged. Seeing how upset this makes Misaki on Usagi's behalf, Usagi realizes that he loves the younger boy and the two become lovers. In the anime adaptation, he is voiced by Hikaru Hanada.