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In a World Where Levels Rule Level ga Shihai Suru Sekai de
También conocida como: Level ga Shihai Suru Sekai de, レベルが支配する世界で · Level ga Shihai Suru Sekai de · レベルが支配する世界で · Level ga Shihaisuru Sekai de
One day, the high school boy, Tohru, was summoned by an aristocrat to [a world where levels rule]. Upon discovering that Tohru's level was the absolute lowest, he was then treated as a slave and trapped in a high-level dungeon. He vowed to defeat the fearsome monsters in the high-level dungeon, level up higher than everyone else, and return to his original world.