俺だけレベルアップな件 (Series) favorite_border

Volume 1 Description: When "Gates" — portals connecting another dimension to our world — appeared more than a decade ago, a new breed of people known as Hunters emerged. Hunters are those who delve into the dungeons lurking within the Gates, slaying monsters in exchange for reward. But not every Hunter is powerful. Mizushino Shun is an E-rank Hunter — dubbed humanity's weakest weapon — who reluctantly keeps at the job just to pay his mother's hospital bills. One day, Shun stumbles into a high-di...