Ako, an aspiring manga artist working at a bar, is in a sex friend relationship with her sister's ex-boyfriend, Tetsuya. One day, while she is having sex with Tetsuya, her sister, Marina, suddenly comes home. Marina tells her that her husband died in an accident and she has just finished the funeral...
After disbanding the trio, entertainer Kenichi was working part-time at a cleaning company. On the other hand, Nami, who was Kenichi's ex-girlfriend, formed a new combination with Yusuke and was working hard at training, but her material was boring and she relied on Kenichi. Meanwhile, Kenichi and Kazuyo naturally have a physical relationship, but she finds out that Kazuyo was actually the wife of the late Kantaro Namiki, whom Kenichi admired.