Death Row Inmate

Death Row Inmate (死刑囚, Shikeisyuu) is the first episode of the Deadman Wonderland anime series.

The Red Man slaughters Ganta's class and Ganta is charged with the murders. He is sentenced to death at Deadman Wonderland where he meets Shiro. Ganta learns about Deadman Wonderland's rules. Later, as Ganta was about to be killed by a falling boulder, he discovers his Branch of Sin ability and destroys it, saving himself.

Summary
As Ganta Igarashi and his classmates plan for a class trip to Deadman Wonderland, a privately owned prison that doubles as an amusement park, a mysterious red man appears, slaughtering his entire class and thrusting a red stone into his chest. Being the only survivor of the massacre, Ganta is charged with mass murder and, due to the overwhelming, and doctored evidence against him and no way to prove his innocence, he is sentenced to death and sent to the Deadman Wonderland prison. As some of the higher ups plot to kill Ganta and have it look like an accident, Ganta meets a strange white-haired girl named Shiro who manages to read his heart and understand him. When a some thugs begin attacking Ganta and Shiro, an explosion causes a large object to fall off the top of a building toward them. However, Ganta's desire to keep living so that he can someday kill the red man brings forth the powers that were implanted into him, allowing him to control his blood to save himself and Shiro.