DragonBall Z: The Royal Bloodline

This st9ory takes place instead of Yo, Son Goku and his friends return. So yes, it stills takes place two years after the Buu saga. But Pan is already born, born the year Majin buu was defeated, an event only the Z-fighters remember. Gohan studies hard to become a scholar, so he barely gets the time to train anymore. But when he does, he's always training his little brother, since Goku was training himself. Since Gohan couldn't train as much anymore, he lost his latent power, but his Super Saiyan 2 form was suffienct enough, as he thought no real danger would threaten earth soon.