Unrequited Love (Kataomoi) (2017)

Mitsuki Hiura (Miki Nakatani) is the former manager for a university American-style football team. A reunion for the football team takes place. Mitsuki Hiura attends the reunion, as well as the team's former quarterback Tetsurou Nishiwaki and other teammates. There, Mitsuki Hiura confesses that she killed a person. She also claims that due to a gender identity disorder, she now lives as a man. After their initial shock, Tetsurou Nishiwaki and other colleagues attempt to help Mitsuki Hiura.