Dragon Ball Idle System [AU]

Transmigrated to another world that bore an uncanny resemblance to the show Dragon Ball, a weak and untalented boy awakened the Idle System.

Can't improve as fast as the others? Just use more slots to multiply the efficacy. Not enough slots? Defeat a powerful enemy to gain another slot! Being human limits your potential? Well, that might not have a solution...

A/N: This is an AU fanfic, there will be many changes to the story, power system and so on.