"DO YOU know why you have demonic power in you, Neoma de Moonasterio?"
"No, Grandpa," Neoma said while shaking her head. "I have a theory, though."
"Let's hear it then."
"I've seen fragments of my first life," she explained. "It seems like I've made a contract with the Ancient Devil in order to burn the world during the first timeline. I'm thinking that the contract I made with them in the past is the root of my demonic power."
"The divine blessing and power that we received from my father, Lord Yule, are both designed to purify any kind of Darkness attribute just like a demon's power."
Yep, she was aware of that.
[It's the reason why Papa Boss didn't inherit his mother's Shadow Manipulation Technique. After all, the Quinzels' power is a type of Darkness attribute.]