Overview:A certain break time. Kotaro, who was playing as a barricade, hides behind the curtains of a deserted classroom and finally falls asleep ... After a few minutes, he wakes up with a loud noise and looks around the classroom secretly. There were only female students in the area, and there was a barricade at the doorway. "What is this !?" And Reiko Koji (Ai Tominaga), who stands on the podium, starts the "Women's Language" class. Words that I have never heard fly around, and things like symbols are written on the blackboard. Kotaro couldn't catch up with his understanding, but when he remembered the letter that the girl student wrote during the morning class, it developed into a big uproar while involving his teacher, Kengo Kunimoto (Jaru Jaru). To go……