Shiori thought it was natural that she would marry her boyfriend someday. After being invited to a wedding by her selfish younger sister, Airi, for the purpose of harassing her, she discovered that the boyfriend she had been dating for four years had no desire to get married, and her values began to change. I get dumped because of our differences... As he realizes that he has been self-centered and reflects on himself, he is thinking about how to get through Airi's wedding, when he meets a bank employee who is a business partner. Haruto makes an unexpected proposal. "I wonder if it's okay if I rely on you..." Kazuichi's feelings of compassion are genuine, but... a fake relationship begins.