Takeshi and Mio have been dating for two months, and they are virgins and virgins, and each other is the first partner to cherish love. Suddenly, DQN senior Kubota, who came to sell a fraudulent luxury duvet, fell in love with Mio at first sight. Kubota, who has a good physique and dash, cannot resist the weak fierceness, and he does not notice the attempt of a cuckold plan and participates only in the invited house as a couple. Kubota attacks Mio in front of the drunken fierce, forcing him to drink at once.