Ep 11. Final Episode

Goda, a former Akado Gakuin student, still holds a grudge against the school, especially Class 3D. He ambushes the students asking them to join his gang. When they decline, Goda and his gang attack the the students, sending Ren to the hospital with serious injuries. Blinded by rage, Ren's friends forget everything Kumiko has taught them as they go after Goda.