"miyabi" is a serious and popular rookie teacher entering her second year on the job. She struggles daily with classroom discipline, doing her best to connect with her students. One day, she calls a student from her homeroom class, "Masao," into the staff room to reprimand him. Masao is a troublemaker who has been caught secretly photographing female students during class and instigating violent fights. No matter how many times miyabi warns him, his attitude shows no signs of changing. The next day, Masao stops coming to school altogether. When miyabi tries calling him, he replies, "I'll listen to what you have to say if you come to the place I'm about to tell you." Though suspicious, miyabi feels pressured by her responsibilities and sense of duty, ultimately deciding to go to the location he specified. But just where exactly is this place…?