I've been thinking about one of my older OCs lately, so I will share a bit about him to encourage more people to chat about their OCs in here.
His name is Leon and slowly he started down a path of madness and misfortune. When he was young he was weak-willed and often bullied by his stronger siblings and peers. He wasn't seen as being useful and he was a late bloomer in developing any sort of abilities. He does eventually make friends, but he made the mistake of comparing himself to all of them and putting them on a pedestal.
Over the years his affection turned to love with one of his closest friends, and they were happy for awhile, but there was always something nagging in the back of his mind that he wasn't good enough.
During that time, he'd encountered a small and unassuming-looking serpent-esque demon called Sylphus. This demon constantly whispered in his head and tempted him over the years with granting his wishes and desires and granting him the power that his peers had always made fun of him for not possessing.
Over the years, this erosion of his defenses finally reached a head and he was finally vulnerable enough to made a deal with Sylphus. The only catch was that he needed to trade off something precious to him in exchange...
I'll leave it here for now, let me know if anybody wants to hear more!