Brother of Denly.
It all started one day when Sans was born. When he was born, he was born. So Sans is like the half brother of Denly or something? Anyways, he's a skeleton. He decided to join Neo Scary Godmother after Denly hired him to help take out the Fruit Flies.
Okay fine I just wanted an excuse to put him in our lore okay? Basically everyone in Undertale is a Neo Scary Godmother character anyways. Can you really blame a guy? If I did otherwise, I would have HAD A BAD TIME. AAHHAHAHA! Get it? Denly does. Fuck you OTFREE.
He died because Nolan fucking killed him.