Goku finally arrives at Kaio's World, where he meets Kaio-sama! He somehow manages to pass the super pun-loving Kaio's gag test, and at last begins his training on Kaio's World. For three weeks, he attempts to catch Kaio's pet monkey, Bubbles, because of the gravity there, which is ten times greater than Earth's. Having finally conquered the gravity, Goku catches Bubbles, and Kaio begins to place a certain hope in him.