The husband of the neighboring Mori-san is not at home because he is working away from home. The young wife of the neighbor who lives alone is Nanako-san and is very kind to the father and son who live next door. She brings Manabu-kun home with her when she goes shopping and shares her dinner with him... but the father and son next door trample on Nanako-san's feelings by installing a hidden camera in Nanako san's house and the son using his child privileges to play pranks on her, and finally...