At 30 years old, Mizue Asai has zero romantic experience and is still a virgin, yet she hides this truth by pretending to be a promiscuous liar at work. On the other hand, Satoru Oozhino is a 25-year-old handsome man known for his countless sexual conquests, but at the office he pretends to be a cherry boy. Satoru sees through Mizue's fake seductress facade and, fully aware of her true nature, sets up a situation where they're alone together in the office on a day off. With Satoru now aware of Mizue's real self, anticipation builds over how he will act, and how their relationship will develop from here.