Enki

煙鬼

Enki, one of Raizen's old friends, is slightly slow-witted but possesses amazing power. He wins the demon world tournament and becomes the sole king of the demon world by defeating Mukuro, who had expended most of her power fighting Natsumi, another of Raizen's old friends. As king, he declares that another tournament will be held in three years to decide his successor and that he will not allow any mischief in the human world during his tenure, as a tribute to Raizen. Consequently, the barrier between the worlds is lowered, allowing demons free passage to the human world, even though they cannot cause harm there. He is married to Koko, another one of Raizen's old friends.