It tells the story of two childhood friends, Shurato and Gai/Guy, who are led to a cruel fate that will completely change their lives. In the middle of a fight between them in an martial arts championship, but the two are teleported to the Tenkukai. After awakening in this world, Shurato discovers that he is the reincarnation of a Deva God, the side of good that maintains balance and peace in both the Tenkukai and the human world and that his friend Gai/Guy has become an evil being, who even wants to kill his own friend.
