After being left alone with a fever she brought upon herself, Umaru plans to exact revenge on Taihei when he gets a cold. Upon discovering his abnormal condition, she saves him. Umaru becomes irritated with peppers Taihei gives, though she soon comes to appreciate the effort he puts into making her eat right. When Umaru inadvertently breaks the internet router, she spends the day at a manga café, spending time than she knows what to do with. In a flashback, Taihei, Takeshi and Kanau won a prize at the arcade.