My Sweet Husband Is the Manhattan Butcher

Amnesiac Aiden is the meek stray Chloe keeps as a servant, until debt collectors corner him and he kills all three bare-handed. She realizes her obedient dog is the Manhattan Butcher, heir to the Cole empire. Terrified yet addicted to his devotion, Chloe learns to stand beside a monster, and the man who ends lives for her will kneel only to her.