The students desperately fight amongst each other for survival, with mentally-ill bully Mitsuko Souma and Kiriyama killing many. Shuya takes Noriko under his wing after his best friend is killed, believing that he has a duty to honor his fallen friend by protecting his crush. Shogo – who was in a previous Battle Royale and hopes to put an end to the Program – avoids the fighting, joining with Shuya. Shuya's friend, athlete Shinji Mimura, attempts to hack the system running the Program and bomb the building where Sakamochi and the other personnel overseeing the Program are stationed, but is killed by Kiriyama.