Amon Natsuki

Amon is the most feared of the Shikizoku, for his power is "Death": he's able to kill anyone simply by draining his or her lifeforce. Also, this drain allows him to heal himself if he's hurt. Though acknowledging his powers as a Natsuki, Amon is not happy about it, as he longs for a more average life. Originally the keeper of the Chimera (which had been passed to him by Shido), he eventually surrenders the heart to Shido, thereby ending his own life. He was fast friend with Haruki Emishi, who shared his penchant for jokes and pranks. However, he reappears in the "Get Back the Lost Time" arc, along with Kaoru and Ryuuhou. The three decided to enter Infinity Fortress to help Shido.