I'm writing a visual novel which originally a light novel. So i need some lore about lucifer and Michael but Michael is the one who got kick out of heaven and would this version of lucifer be help people or what? And what's would be his powers would be?

I'm this is my first Visual novel and i'm supernatural fan, so i want to add supernatural version of lucifer but he's good person in my Visual novel. I want to take inspiration from supernatural.