S1, E2: Ganta learns from a fellow inmate, Yō Takami, that in order to have a decent meal in the prison, he needs to earn cast points. He and Shiro decide to enter the dog race in which they can win a big prize. In the locker room, they encounter a fierce inmate named Kazumasa Kouzuji who drives fear into the others until Makina, the prison warden, silences him. Ganta soon learns that in order to avoid being killed by a poison, he needs to eat an antidote known as candy, which Yō secretly stole from his bag the other day. Ganta realizes that in order to survive, he needs to win the race in order to purchase a new one, but he soon learns the course is littered with actual death traps. Thanks in part to Shiro's innocent manner, Ganta and Shiro make it to the final stage against Kasumasa, where they have to hold onto a ball and avoid falling into a spike pit. Ganta decides to stand up to Kazumasa, who eventually falls to his death. In the closing moments of the round, Ganta is forced to sacrifice the ball, and the prize money, in order to keep Shiro from falling and to keep their promise of sharing the runner-up prize together.