Nabari No Ou 7

The Banten shinobi and Grey Wolves are under attack by the students at Alya Academy. Raimei tries to talk Subaru out of fighting, but Subaru reveals that the brains of young shinobi are the main ingredient for the forbidden cure-all Daya, which she wants to use to revive the school's headmaster, who is dying of a chronic disease. They capture Raimei, Juuji, and Miharu, but Yoite's brains are judged useless and they run him through with a sword.
Meanwhile, the adults are still fighting upstairs with Kouichi, but they can't get into the basement where the other kids are until Kannuki shows up, capturing Kouichi and forcing the others to surrender their weapons. Kannuki reveals his own plans to mass-produce Daya and gain huge profits for Alya Academy, and Yukimi starts the fighting again. While Kumohira tries to stop Kouichi from ruthlessly beating Kannuki, Kouichi gets shot. As he dies, he warns Kumohira that others will die in a similar manner because of him and his ideals.