Goku jr cant fight anymore and told Zaiko: Goku Jr-Zaiko, come back in two months and will fight you.That will give us time to train before our next fight, now go and train .... you'll need it ... Goku jr trained with Master Roshi and Hercule (Hercule uses the same medicine that uses kame to be immortal), Goku jr and Vegeta jr one day decided to seek the dragon balls so they found something else ..... a dark dragon ball! They have touched the ball, and they are transported to the planet of Shenlong, where they find a saiyan with hair, fur and white tail! They say: Goku Jr-Wh ... Who are you?