After almost losing her life, Lisa Charles finally decided to hire a bodyguard to keep her safe and ensure that she will be able to continue the legacy that her parents left her. Hence, a close friend of hers recommended that she buy Xavier Hawthorn-a merciless killer-who was now up for auction. Despite the risks of keeping a mercenary with no master next to her, Lisa still spent millions to acquire him. She made him sign a contract and tied him to her for two whole years, which will unravel the darkest secrets of her bodyguard and attract more dangers around her. With both of them being known to be untameable, will they make a formidable team or will they only be each other's downfall?