Riko Shirono doesn't have any big expectations for a man in her life, but she works as a love simulation game planner. She receives a request for a new love game from app company TIMEIS. Soichiro Kurokawa is the CEO for the company. He is almost perfect, but he can't understand a woman's mind. One day, Soichiro, who likes his subordinate Momose, asks Riko to teach him...