Deadman Wonderland: The Red Knife Wielder

デッドマン・ワンダーランド 赤いナイフ使い

This OVA steps away from Ganta and Shiro to follow Senji Kiyomasa years before he becomes the Deadman known as Crow. Two years after a tidal wave devastated Japan, Senji works as a police officer, using his Branch of Sin power to take down criminals. After he rescues a boy named Izuru from a gang called Goreless Peace, the gang's leader Keigo Ugachi, who wields a Branch of Sin of his own, turns on everyone Senji tried to protect.