One word: Spite
Hi! A lot of us have OCs with fleshed-out backstories and complex personalities... but what was the first thing, the first trait you've come up to for them? What made you create this character? The answer can be as serious ("I wanted to create a character to share with my experiences with <event>") or silly ("I really like pasta so I've made a character who likes pasta") as you want!
Just have fun and please keep things civil ♥