A class reunion was held for the first time in a long time. Aika was Kokoro to be reunited with her ex-boyfriend, but at the same time, she had mixed emotions. As they reminisced, a thought crossed her mind: what kind of Mirai would have awaited her if she hadn't broken up with him back then? She couldn't help but compare it to her current married life, which is hardly happy. Back then, she was young and couldn't be honest with herself. But now... With the memories and emotions of those days coming back to her, Aika blurted out, "My husband is on a business trip and there's no one at home. If you don't mind... would you like to come?"