Mio, a daughter-in-law who is still under pressure to give birth to her grandson. One day, the whole family will go on a hot spring trip that was won by a lucky draw in the shopping street. However, this trip was a child-making trip planned by my mother-in-law. On the day of the trip, she invites her husband to have sex as ordered by her mother-in-law, but she is refused. On the other hand, his father-in-law also tries to hold his wife, but is refused. - The two who have too much sexual desire headed to the hot spring to calm their agonizing bodies. And my father-in-law, who happened to witness Mio's bathing appearance, ...