Enhancer

A guy got hit by the truck. Yes, the truck that send people to the other world. However, it was a mistake. He wasn't supposed to die.

So, the gods took pity on him and he was reborn in a world like one of the novels he read before. He was reborn as the side character but the gods gave him a gift as a compensation for their mistake. A cheat power that would enable him to be an overpowered someone and even more than the main characters.

An overpowered side character that determines to keep his true potential hidden. How would he fare in a vicious world that is bound to shed bloods and sufferings?