Five years have passed quietly. Since that fierce battle with the Great Demon King of Picco, Sun Wukong has lived a peaceful life.Now, he has a lively and lovely son, Gohan.However, this tranquility was completely broken by the arrival of a mysterious alien.One day, a cosmic man named Latize descended to the earth in a spacecraft and headed straight for Wukong.He not only revealed a long-closed truth - it turns out that Goku was not an earthling, but a "Saiyan" who belonged to an endangered warrior race, and also broke the original ordinary and warm life of the father and son.This sudden reunion awakened the fate of sleeping and brought unprecedented crisis to the earth.