Jiro, who lives with his brother and sister-in-law. His sister-in-law, Mai, was once Jiro's tutor, and he has had feelings for her since then. One day, while studying with Mai, Jiro sees them having sex... After that, the two get married. Unable to accept that the woman he liked married his brother, Jiro tries to make Mai his own by pushing her down. However, even as she resists, Jiro starts recording her with a video camera…
