Kinki (2014)

A teacher is sexually involved with an underage student. She visits her father's home and discovers a boy who's been kept as a sex slave. The teacher continues harboring the boy out of fear and begins to feel sexually attracted to him.

Genres: Crime, Drama

Stars: Kiki Sugino, Taiga Nakano, Shiro Sano, Shoko Fujimura, Sarara Tsukifune