A certain law firm. A young wife, Riko, reunites with her former boss, Sawaki. Sawaki was deeply aware of the fact that Riko chose a male subordinate instead of herself... Sawaki rapes Riko and flaunts her knowledge of the law to silence her. Fellatio next to her husband's sleep, training with toy torture... Riko falls into an abyss of pleasure that she cannot escape from.