"I can't have a teacher. I'll be kind to me." Oda, a student, thinks about his homeroom teacher, Shiho. I want to convey this feeling to Shiho even though I know it won't come true ... A turning point came in my days of agony. The appearance of Shiho talking with a colleague teacher. A relationship that can be understood at a glance. Oda, who trembles with anger when his feelings are trampled, plans a selfish plan.