The following novels all had skeleton protagonists: "Journey to the Skeleton","Evolved into a Super Skeleton at the Beginning","A Skeleton's Immortal Cultivation Game","Reborn into a Skeleton","The Strongest Undead System","Skeleton Magician","The Strongest Lord of Skeletons","Warm Bones","Super Skeleton Soldier","Become a Skeleton Monster at the Beginning","True Skeleton Immortal", and "The Bone of the King of Sin Realm Transformed and Traversed in Otherworlds". I hope you like this fairy's recommendation. Muah ~😗