Koharu and Yuusuke have been together for two years. They love each other and live together, but Yuusuke is skinny and unreliable. Despite this, Koharu feels somewhat happy. Recently, Kunio, a senior from Yuusuke's school, has been hitting on Koharu at every opportunity, making Yuusuke unhappy. But he can't say anything... One day, Kunio suggests having a hot pot meal at Koharu's place. Unable to refuse, Yuusuke reluctantly agrees but is extremely worried inside...
