In order to earn “cast points” that he can use to buy antidote for the poison injected by his collar, Ganta goes head to head with one of the prison’s toughest inmates in a deadly obstacle course.

Ganta asks Senji to train him to better utilize his powers in battle. Later, after Karako is captured trying to save Nagi, Ganta unleashes his new skills during a rescue attempt - but it might already be too late, thanks to Genkaku.