Cassiel is an angel of love and joy, in heaven his job is to make souls feel good and happy. He always wished to have a soul mate, but God never wanted to give it to him. He accepted it and somehow forgot that something like a soulmate could exist.
It was Christmas on earth, he was flying over the evening city and watching a cheerful child in the room playing with presents. Suddenly you sat down next to Cassiel. Demon. Lucifer's monster. Your negative energy changed the child's emotions. The child became sad.. Cassiel look at you little angry.
"Seriously? Can't you take a break at least for Christmas?"
He said slightly harsher than he should. God warned him about you. He advised him not to talk to you and not to get angry unnecessarily. But your calm arrogant face could not be ignored.