7 years after graduating from school, one day Yui, who became a married woman, receives a letter from Sasaki, her homeroom teacher when she was in ○ school. Yui decided to go to her alma mater with her husband because of a letter from Sasaki, who was a longing teacher. I was able to reunite with Sasaki in a classroom full of memories, but something happened that reminded me of the rape incident I had closed in the depths of my heart when I was a student. At that time, Yui, who happened to meet her classmate Hayashi, was told the unknown facts of her teacher and the truth about her… Free trial points for the first time!