Yumi (Yumi Kazama) didn't care what she did after reuniting with her ex-boyfriend at the class reunion.Since then, I can't get my ex's face out of my head.And the memories of those days come back to life.We were both young and lacking courage.How much did you later regret that you ended up with a pure relationship?I wonder how she feels when he hugs her. The feelings that hadn't disappeared for 20 years had swelled to the point where they couldn't hold back when they met again.At that time, Yumi's husband will be away from her house for three days on a business trip.