After the battle with Majin Buu, Son Gohan just wanted to be an ordinary high school student. In an accident, he was involved in the past by the time and space crystal - Planet Vegeta before the Saiyans were exterminated. Red soil, purple sky, two suns. There is also a man who looks exactly like his father - Bardock, his grandfather. Gohan knew that the planet would be destroyed by Frieza, knew that Bardock would die in that battle, and knew that Kakarot would be sent to Earth. He knows everything. But he couldn't say anything. Because if history had been changed, if Kakarot had not been sent to Earth - Son Gohan himself might not have existed at all. So he could only shut up, pretend to be an ordinary Saiyan with very low combat power, move boxes in Bardock's team, get scolded, and be disliked. Watching that venomous and cold-mouthed man heading towards his destined end day by day. And he may never be able to say the word "Grandpa".
