He has an icy heart... but for her sake he will burn the whole world.

Alex Volkov is a devil with an angelic face and a past from which he cannot escape. Driven by the tragedy that has haunted him most of his life, he ruthlessly pursues success and revenge, leaving no room for matters of the heart. But when he's forced to babysit his best friend's sister, he begins to feel something in his chest: A crack. Melting. A fire that could end his world as he knows it.

Ava Chen is a free soul trapped in the nightmares of a childhood she cannot remember. But despite her terrible past, she has never stopped seeing the beauty of the world... including the bound heart that she should not desire. Her brother's best friend. Her neighbor. Her savior and her undoing.

Their love never should have happened, but when it does, secrets are revealed that could destroy them both... and everything they hold dear.