Kakó

Kakó (κακό) is one of the original immortal gods of the Dragon Ball universes, appearing as the main antagonist of the story Rift: Gods and Akua. He is the god of mischief and the patron of Majins.

History
Kakó is one of the 7 original gods of the multiverse of Dragon Ball, created prior to the beginning of time and space as an entity embedded within Chaos, an immense void of nothing save for little bits of floating matter.

As one of the odd ones out of the group, Kakó generally didn't fit in with the other gods. After the creation of the first universe, where the gods went to reside, he found that he only delighted in making trouble, generally between other gods. His actions earned him the animosity of his more powerful brothers and sisters, the more dominant gods, leading to his eventual banishment.

Kakó was placed into an entire different plane of existence created to keep him from causing trouble. This was the second universe. It was there in his first banishment that he discovered two of his important abilities. He first discovered his ability to create life forms, though his abilities were not as powerful as that of his sister the creator goddess, Génni̱si̱ (meaning birth in Greek). His abilities, though, produced drastically different results. All the life forms he created were Majins, the original monsters. He created masses of them and had them fight each other for his own amusement. Later, he discovered his second ability: the power of his rings. After experimentation, Kakó learned that the rings that he wore throughout his body were not only expandable, but also duplicable, giving him the ability to create however many he wanted to at will. Furthermore, the rings created portals to anywhere Kakó wanted. It was with this that Kakó escaped with an army of Majins back to the first universe.

This became the first god war. The Majins were powerful, nearly wiping out all of the life created by Génni̱si̱ in the first universe. However, they were still mortals. Eventually they fell against the gods, leading to Kakó's capture. Realizing the power of Kakó's rings, the gods set out to make sure that such an event could never happen again. they created infinite universes, each exactly the same at the beginning yet slightly altered over the course of time from the others. Kakó, with his portal creating powers still juvenile, wouldn't be able to easily navigate this endless sea of existence. To further his punishment, he was trapped within an enchanted oil lamp and blasted throughout the cosmos to one of the less populated universes.