Yukari, a mother, receives a call that her son Takeshi has been in a traffic accident. Fortunately, he is not seriously injured, but due to his injuries he will not be able to walk for a while. Yukari cares for her son, but one day she witnesses her son trying to masturbate but not being able to do so and looking distressed. Yukari gently takes her son's penis in her hand, saying, "Just while you're injured."