Youtou ni Miirareshi Skeleton: Meikyuu wo Shihaishi, Muteki no Gunzei wo Hikiiru "Saikyou" no Ken Maou

Out of all the horrors born in the labyrinth, skeletons are the weakest. In a world where the strong prey on the weak, one skeleton has no choice but to always run from danger—until a fateful encounter with a sentient cursed blade gives him unfathomable abilities?!

(Source: Yen Press)