Kissing Scarlet (Kissing Monsters 3‪)‬

Kiss’s thoughts scatter when Zane starts to move; he advances, his steps lithe and graceful as a predator’s.
Like the monster he used to be.
He still carries that strength, that rawness, with every step he takes toward her.
“Kiss,” he rasps, suddenly before her, her name a sweet hiss floating off his lips. He is close enough to touch—and before she can think, before she can think of backing away or coming closer instead, he’s already doing just that: touching her.
“Kiss,” he repeats roughly, his gaze bright with emotions she can feel swirling in her heart, a wild dance. “What are you doing here? How have you found me?”

After surrendering herself to the monster called Lock, all to save Zane’s life, Kiss is now forced to live in the demon’s lair as his obedient servant, bound to him by a ring made of bone.

Lock’s word is law. Her name is now Scarlet because he says it is.
And she is sent away to kill Zane and collect his blood,
because he tells her so.

Meanwhile, Zane is traveling the world in search for a human who could become the next Gifted One—a Monster Kisser, like him—which brings him to a sleepy seaside town, where he soon meets a young, blue-haired woman called Skylar.

Skylar has a secret to hide—yet when Zane starts to uncover it, he realizes that their paths crossing must have been a twist of fate.

Willing to do anything to free Kiss from Lock’s reign, Zane is ready to break every rule and make any promise;
even if it means the wrath of angels.

Even if it means giving Kiss his blood.