A reunion that was held a long time ago. - Aika is excited about her reunion with her ex-boyfriend, but on the other hand, she has mixed feelings. - While reminiscing about her memories, what lurks in her mind is what kind of future would have awaited her if she hadn't broken up with this person at that time. - She couldn't help but compare it to her current marriage, which is hardly happy. - At that time, she was too young to be honest. - But now... - With her memories and emotions from that time coming back to her, Aika unexpectedly blurts out, "Her husband is on a business trip and no one is at her house. If you don't mind... can you come?"