Midori, an office worker, broke up with her long-term boyfriend, Kinnosuke, because a new boyfriend, Goro, proposed to her. However, Goro had an affair and easily dumped Midori. When Midori tried to take off her engagement ring, she dropped it into a pot of oil and burned her hand when she stuck it in. Meanwhile, Kinnosuke was beaten with a baseball bat by his other girlfriend, Junko, and her brother. On their way home from the hospital, the two men unexpectedly meet again at a bar…