Kobeni death devil

It’s Kobeni Higashiyama. Except she’s of one of the four horsemen devils who is considered as the Death Devil. She can kill you easily and is the strongest Devil who embodies the world's ultimate fear: death. She is the eldest of the Four Horsemen, first mentioned by her younger sister Makima and later again by Yoshida. the Death Devil does not care for humanity and might, at the same time, expressly desire for Devils to dominate Earth.