Shishito Madoka

Shishito Madoka is a Complete Forgery in the First Unit, and his power is Jūshin Shinjū that controls people's five senses. In the beginning he saved Ganta from the torture that Tamaki put him through by giving him a drink that contained some of his blood. His was able to paralyze the nerves that caused pain. Later, in chater 36, it is discovered he intended to personally torture and kill Ganta. Because Madoka severly bullied as a child and lost his father to the earthquake, he grew into a psychopath who enjoyed being "unhappy", so he made others "unhappy" as well. He tortures Ganta by making him feel the sensation of being rammed into the wall. Then he crucifies Ganta. When Madoka discovered Shiro's life meant more to Ganta then his own, he decides to torture Shiro with the iron maiden. Fortunately Ganta and Shiro are able to defeat him in a combined attack.