Minami has been a good educator for 10 years, moving from one bad school to another and guiding various students to the right path. But her next assignment is a school for bad students that is incomparably worse than any she has seen before. Students gathering together to smoke in the street... Students who are violent towards teachers... Seeing these students fills Minami with motivation. Minami , Nakano, a student she is in charge of, is suspended indefinitely. She immediately visits Nakano's house, but due to an unexpected commonality between them, she reveals a secret that she has been hiding...