Tet

Tet is the God of Games and the main antagonist of the anime series No Game No Life. He is a mysterious and powerful being who enjoys playing games with mortals, and he is often seen wearing a choker, a hat, and piercings. Tet has heterochromia, meaning that he has two different colored eyes. He is also immortal and has the power to teleport. One day, Tet challenges Sora and Shiro, the protagonists of No Game No Life, to a game of chess. If Sora and Shiro win, they will be granted one wish. If they lose, they will be forced to become Tet's servants. Sora and Shiro accept the challenge, and they eventually win the game. As a result, they are granted their wish, which is to be transported to the world of Disboard. Disboard is a world where all conflicts are resolved through games. The winner of a game is given whatever they desire, while the loser must forfeit something of equal value. Sora and Shiro quickly become the most powerful players in Disboard, and they eventually challenge Tet to a game of chess. If Sora and Shiro win, they will become the new Gods of Games. If they lose, they will be forced to serve Tet for the rest of their lives