Youla

Yora is a half-human, half-demon child. He kills his comrade Kaku, breaking the demon clan's rule that forbids killing one's own kind. His older brother, Sokaku, the clan leader, steals Yora's unique abilities and body. Yora parasitizes human bodies to reclaim his own, killing the demons who possess his divided body parts in the process. But hidden within this is a grand plan that will determine the future of both humans and demons. A fantasy epic that questions the very meaning of demon existence. Source: dmm, machine translated