When Tsukushi and Emiri, who were both children's thoughts, moved to Tsukushi school, they would be able to leave for a while. They met again over time, but Emiri had a new lover named "Mio-sensei" who was his homeroom teacher. And the teacher who puts his hands out to make it while emilying. The two people who knew the fact called the teacher. A forbidden love affair between the teacher and two students.