Vestige: A steamy enemies-to-lovers fantasy romance

I am the dark Angel's obsession

I am the dark Angel's obsession, and he has come to collect his prize. While I'm at work in the infirmary one day, he appears in the doorway glowing like a blazing sun God, his attention laser-focused on me, and takes me to his home.

His castle is wickedly wealthy, with ornate furnishings, fruits and desserts I've never even heard of, and a delightful underground lake. A far cry from my colorless life in the Undercity. The catch? The dark Angel wants to lock me...