North Kaioh

North Kai (北の界王, Kita no Kaiō), also known as King Kai (界王様, Kaiō-sama), is a significant deity in the Dragon Ball series. He is the ruler of the North Area of Universe 7 and resides on a small planet at the end of Snake Way. North Kai is known for his humorous personality, terrible jokes, and remarkable wisdom. He serves as one of Goku's martial arts mentors, teaching him important techniques such as the Kaio-ken and Spirit Bomb. Besides Goku, he has also mentored other warriors such as Tien Shinhan, Piccolo, Yamcha, and Chiaotzu. North Kai's planet has gravity ten times that of Earth, and his iconic appearance includes blue skin, sunglasses, antennae, and a black robe with his symbol. He also lives with his pet monkey Bubbles and cricket Gregory.