The Supreme Kai is a character from the Dragon Ball series, serving as a high-ranking deity responsible for overseeing the universe. Each universe has its own Supreme Kai, who helps maintain balance and order among the various realms and assists in the development of mortals. Supreme Kai possesses unique abilities, including the power to sense energy and the ability to create and destroy life. They often work alongside other deities, such as the Grand Kai and Zeno, to protect the universe from powerful threats, including villains like Majin Buu and Frieza.