Gods!
They are omnipotent beings, far beyond human understanding. There are multiple gods, classified as Omnipotent Gods, Forgotten Gods, and, lastly, Eccentric Gods.
Gods gain their powers through a ranking system. When a god is born, they are sent to another dimension where they must fight each other to the death. Each one possesses unique skills and spreads their power to lower beings in exchange for a vessel. All gods are bound to this rule—except the Eccentric Gods.
Eccentric Gods do not need vessels. Their power far surpasses that of all other gods. Among them, there is one Eccentric God stronger than the rest. His name is Atticus, the God of Worlds. Just as his title suggests, he creates entire worlds.
However, with great power comes limitation. Once Atticus creates a world, he cannot interfere with it—unless something disrupts the balance that governs that world.