This role-play is performed by adults. After getting married and living with her husband Kazuya's parents, Toa can't help but fall in love with her father-in-law, who lives with her. In particular, the way Kazuya looked at Toa was disgusting, and the time alone with his father-in-law during the day when Kazuya was away from work was painful. If things continue like this, they might be attacked someday...Toa's premonition, which had an ominous atmosphere, was correct! !