Viz Edition Release Date: 2003
Proper Japanese Title: Son Gohan to Pikkoro Daimaō (孫悟空とピッコロ大魔王)
Goku is dead--but his journey is just beginning. Now he must travel through the afterlife along the million-kilometer Serpent Road to find Kaiô-sama, the Lord of Worlds, who will teach him martial arts techniques so powerful they're reserved for the gods! And he'd better hurry, too, because Earth has only nine months until the evil Saiyans, Vegeta and Nappa, will arive to wipe the planet clean of life. While the archdemon Piccolo trains Goku's son Gohan to reach his full power potential, the alien spaceships rocket ever closer...bearing a power so awesome that even Earth's six strongest heroes may not be a match for it!!!
Realizing the hidden power inside Gohan, Piccolo kidnaps him and begins to train him. In the middle of training, Gohan transforms into an Oozaru. However, Piccolo manages to eliminate this problem by destroying the moon. At the same time, Goku was earnestly training under Kaio-sama (King Kai), who stood above Kami-sama.
And then, the Saiyans Vegeta and Nappa finally arrived. Piccolo defeats the Saibaiman, and the battle between him and Nappa has just begun!