Dimension Traverser

Nathen lives in a world full of individuals with abilities. He at first was just a normal EightTwelve cashier. But he too would unlock his ability. The ability to hop dimensions instead of going into dungeon portals that have restrictions. The association would laugh it off saying it's a shame he was an E rank and not a powerful SSS rank who could've had a chance to conquer and take over dimensions. Since dimensions have no rules, the enemies are overgeared and nearly impossible to kill. Only SSS ranks were strong enough. Funny enough Nathan did not lose hope and would travel to one fateful dimension.