The unquestioned leader of Kingou, he's a dark sennin whose scheming intellect rivals Taikoubou's. He's known for biting his fingernails whenever he's thinking through a problem, and he has a troubling habit of brushing off the consequences of his own actions.
He wasn't always a demon. Originally, he was a human disciple of Genshitenson named Ou Eki—until he got caught up in a political deal between Kingo and Konron. The two factions traded him for Youzen to keep the peace, but since Kingou doesn't accept humans, he ended up locked away. That changed when Dakki showed up and split his soul into three separate pieces, each one housed in a yokai body.
His arsenal includes the paopei Kousuijin, which summons acid rain, and the paopei dani—a living weapon similar to Youzen's Koutenken, except it takes the form of microscopic ticks that burrow into a sennin and slowly drain their energy just by existing on them. Beyond that, he can conjure warp gates that look like shimmering rectangular mirrors made of water. Through them, he can see anywhere they lead and transport himself or whoever else he wants to pull through.
Content compiled by AnimeList.moe from publicly available sources.
