A jiangshi originally engineered as a weapon in China. He was subdued by Sha Rijan, who gave him a heart and sealed his eyes with a paper charm—essentially his off switch. He's been loyal to her ever since, following her to England and sticking with her through everything. After she died, he stayed on at Cafe Forbidden.
He's the quiet, composed type most of the time, but remove that charm and he turns into an uncontrollable force, attacking indiscriminately. He can summon weapons at will and uses them with scary precision.
Content compiled by AnimeList.moe from publicly available sources.