Skeleton Soldier Couldn’T Protect The Dungeon is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

His only purpose was to protect his master. And yet he was powerless to protect her. But fate has more in store for him as he gets another chance to protect his master once more and change his destiny.