There were many novels from another world where the main character was a Necromancer who could summon skeletons, such as "All People: I am a Necromancer, Unlimited Upgrade Skills","The Underworld Lord","The Dark Skeleton King","Long Live the Skeleton","All People Class Change: The Hidden Class Undead Lord at the Beginning","Necromancer Sandro", and so on. I hope you like this fairy's recommendation. Muah ~π