In Roy's view, the seven Dragon Balls he left in the world of Ashan were something that did not exist in it previously. Although information about the Dragon Balls had spread through the Sylanna's Ancient, it was still uncertain if it was true or not. Moreover, without the help of the Dragon Ball Radar, it was impossible for anyone to gather the seven Dragon Balls in just a few years.
However, Roy's thinking was actually wrong because he had overlooked something when he considered the problem. The flow of time in the Abyss was different from the flow of time in Ashan!
It could even be said that the flow of time in the Abyss and many other worlds was different…
…
Erathia Continent, Ashan.
On the land thousands of kilometers south of the kingdom of Erathia, there was a city called Ulambus. It was a city belonging to the Academy.