Gig of Despair
Detesting his weak self, Ganta asks Crow to teach him how to use his Branches of Sin to fight. Meanwhile, Karako attempts to infiltrate the Undertakers by disguising herself as a guard. As Toto appears before Ganta and Crow during their training session, Shiro, who gets drunk off of liquer sweets, appears before Genkaku, who also discovers Karako. Just as Ganta manages to produce a blood bullet that can break the sound barrier, Genkaku announces his capturing of Karako and Shiro. Despite being low on blood, Ganta rushes to where Genkaku, Karako and Shiro are, but is confronted by Nagi, who had been broken by Genkaku into a raging demon.
Aired 26/06/2011EP 11 - Gig of Despair

Deadman Wonderland
Ganta is the only survivor after a mysterious man in red slaughters a classroom full of teenagers. He's framed for the carnage, sentenced to die, and locked away in the most twisted prison ever built: Deadman Wonderland. And then it gets worse.
At Deadman Wonderland, convicts are forced into brutal deathmatches for the amusement of the masses, the cheers of the crowd drowning out the screams of the dismembered. Even when Ganta befriends Shiro, an unusual female inmate, his dark fate crushes all hope —until he discovers the strange ability to wield his spilled blood as a weapon. Ganta learns his new skill might be related to the murderous man in red and uncovers disturbing secrets that could expose those who stole his freedom. He's determined to see justice served —but first he'll have to fight for his life in a prison that holds a million ways to die.
(Source: FUNimation)