Yami Teiou appeared from the black clouds that covered the sky above the Town of Birmingham. He is trying to use the New Dark Army to turn this world into a dark one. He always looks like an evil god statue with his arms hidden, and only shows them when absolutely necessary, but before the appearance of Shinsei Daishougun, he finally gets into a fighting stance. He has a powerful magic spell called the Black Magic Shadow Bullet, and special moves such as the Cold Eye Immovable Blade and the Magic Vanishing Slash that are unleashed from his Demonic Sword that absorbs the power of darkness. As a being from the world of darkness, he cannot move freely on the earth, which is the world of light, but in exchange for an immortal body, he can transform into an evil beast of darkness, gaining enormous fighting power and a body. The eyeball in his stomach is the source of his dark power, and among the members of the New Dark Army, those who possess this eyeball-like object are undead spirits that have been resurrected by Yami Teiou.