レベル1だけどユニークスキルで最強です (Series) favorite_border

[DeepL Translation - needs review] Introduction to Volume 1: Ryota Sato, a black company employee, is transported to a mysterious dungeon where everything is dropped by monsters. He is in the worst condition, with all his stats such as strength and magic power at "F" (weakest) and his level at a fixed "1" (lowest)...!　Can Ryota survive in this mysterious world with his only hope, his mysterious unique skill?

(Translator: DeepL)