The reincarnation of the world's strongest men, their ordinary lives are already over. Cheonma stands on the verge of unifying the world. After a decisive battle with their arch-enemy, the Ice Witch, the two die together and are reincarnated into the human world as ordinary twin siblings. But peace is short-lived. Now in their teens, reincarnated organizations are shaking the world. The world will not spare these siblings, who try to live while hiding their past powers. Former subordinates gather, one by one. This time, the Ice Witch protects them as a partner, not as enemies. Can Cheonma truly become the world's strongest again?!