His parents came to visit their son, who lives alone in an apartment, to check on him. His stepmother is an intelligent woman who is very active both publicly and privately even after marriage, and she always looked great in a formal suit. Perhaps because her busy daily life had suddenly relaxed, his stepmother takes a nap for about an hour at his son's apartment. His father had already left, and his son, left alone with his stepmother sleeping defenselessly and the swelling of her suited body, couldn't stand it anymore...