Reiko, who was cheating on her husband with Kojima, a man she met on a dating app, just for fun, ends up in an unexpected situation. Her husband returns home with two subordinates, one of whom is Kojima. Reiko is confused, but Kojima, who knows that Reiko is his boss's wife, persistently pursues her. Not wanting to expose their relationship, Reiko does as she is told and sucks his dick. The situation becomes even more complicated when Shimizu, another subordinate of her husband who had come to the house with Kojima, sees them...