The Empress of Mysth 3: Angel's Indecent Proposal

The most formidable angel comes across the universe and finds her. He will stop at nothing to possess her, even if he must fall.
The High Prince offers his future sister-in-law an indecent proposal: sleep with him once and he'll keep her safe. Rose will turn his urge against him and destroy the savage angels' house. But while unbridled lust burns the prince, it also torments her.