Fics like The Crow and the Dove

Kai (protagonist) is a winged hero born with the powers of an ancient angel with whom Kyriel (antagonist, an angel himself), is obsessed with. In order to possess said powers Kyriel chases Kai all his life, from childhood to adolescence, up until the point of murdering him and bringing him back to life as an undead servant, his human weapon, in order to ensure his absolute compliance. Years later, after having served as Kyriel’s prince and monster, Kai escapes with the help of Ashe (love interest), who never gave up on him. After years on the run, Kai masters his powers as a free man and chooses to use them to stand up to Kyriel, who in the meantime has wrecked havoc on the land of men. That is until Ashe disappears one day, pregnant with Kai’s child, and Kai finds a single note on her pillow: “Playtime is over. Come home.”