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.

An era has arrived in which humans live like kings, making full use of robots and AI. Karen attends an event called a matchmaking share house. The event is part of the humanoid development project of the company where she works, and is a demonstration experiment of a "falling in love function."