Takeshi Haijima (拝島はいじま たけし) is a supporting character in ONIMAI: I'm Now Your Sister!, voiced in Japanese by Fumiko Uchimura. The series' music includes "ONIMAI: I’m Now Your Sister - Opening | Identeitei Meltdown", "ONIMAI: I’m Now Your Sister - Ending | Himegoto * Cry Sisters".
