When they were young, Yui had a good relationship with the Jin brothers who lived next door. She developed a small crush particularly towards the older brother, Soichi. However, after he entered middle school, they were not able to see each other anymore.

18 years after, Yui now works at the Law Firm managed by the Jin Family. During her welcome party, she had an exhilarating feeling in her heart. That is because… she can see finally see Soichi who returned to the country after studying abroad. A reunion after 18 years with the man whom she continuously kept in touch with through email. Yui was looking forward to it, however, did Soichi’s temperament considerably change compared to how he was back then?