Risa and Takumi were born and raised in Kanazawa. Dating for a year and a half. At the age of 30, the two people around them started to talk about marriage, and they decided to live together. The two, who have become conscious of marriage, gradually notice the gap as they share time with each other. At that time, Risa's feelings changed as a result of an incident with her female friend, Mako, who was consulting with her about marriage.