Sekigan Renkin Kenshi no Yarinaoshi Kitan隻眼錬金剣士のやり直し奇譚; Tale of the One-Eyed Alchemical Swordsman's Do-Over

Five years have passed since dungeons suddenly appeared on Earth. Yashiro Yoiichia highly skilled explorer who challenged dungeon raids from the very beginningwas once seen as a rising star. But during one expedition, he was attacked by an irregular monster known as a Trial Beast, losing the sight in one eye. Branded a failure and cast aside as a washed-up explorer, Yoiichi refuses to give up. Armed with a unique power unlike anything else, he rises from the very bottom to strike back. A dungeon-dominating fantasy about a one-eyed alchemist swordsmans comeback!