Raised By Wolves

Humans, Monsters, they killed Nightmares family, captured him, putting him in an asylum, changed his name, and then expect him to conform to a society which he had zero experience with for most of his life. He's hated Humans and Monsters ever since his first encounter with them, but now there's a handful of skeletons willing to change his perspective.

This is a story where Nightmare was raised by a pack of wolves ever since he was little, Nightmare has ADHD in this story as well.