King Kai, the North Kai of Universe 7, is the jovial, short-statured deity who trained Goku in the afterlife and provided the Z-Fighters with some of their most iconic techniques. Residing on the tiny planet of King Kai's World at the end of Snake Way in Other World, King Kai watches over the northern quadrant of the universe with a mixture of cosmic responsibility and goofy humor.King Kai, the North Kai of Universe 7, is the jovial, short-statured deity who trained Goku in the afterlife and provided the Z-Fighters with some of their most iconic techniques. Residing on the tiny planet of King Kai's World at the end of Snake Way in Other World, King Kai watches over the northern quadrant of the universe with a mixture of cosmic responsibility and goofy humor. His training of Goku, who reached him after a perilous journey along Snake Way, is legendary: under the ten-times-normal gravity of his planet, Goku learned the Kaioken, a technique that multiplies the user's power at the cost of severe bodily strain, and the Spirit Bomb, the ultimate technique that gathers energy from all living things. King Kai's teaching method of telling terrible puns and cracking himself up became one of the series' most endearing recurring gags. Despite his comedic presentation, King Kai's wisdom and power are genuine: he can telepathically communicate across the universe, sense energy signatures from galaxies away, and even trained Piccolo, Tien, Yamcha, and Chiaotzu during their post-Saiyan Saga afterlife training. His role diminished as his students surpassed him, but King Kai remained a trusted advisor throughout Dragon Ball Super. His most consistent character trait, aside from his love of bad jokes and his pet monkey Bubbles, is his exasperation with Goku's habit of getting him into trouble, most notably when Goku brought Cell's self-destruct to King Kai's planet, killing the Kai (again) along with Bubbles and Gregory. King Kai was never revived, choosing to remain in the afterlife where he continues to train fighters, make puns, and complain about being dead. His two iconic techniques, Kaioken and Spirit Bomb, remain central to Goku's arsenal decades after their introduction.... Read more
