Rocco by Sarah Castille is book Three in the "Ruin & Revenge" series. This is the story of Rocco and Grace. I have read the other books in this series but feel this can easily be a standalone book.
Rocco works for Grace's father and when she was a kid he would be the one her father assigned to drive them and look after them. Grace didn't know exactly who her father was other than a successful business man. When Grace is around 16 years old her feelings for Rocco take on a more adult theme for her and him. But it also opened her eyes to who her father was and what Rocco did for him. Grace would later run away and take on a new life. But then their worlds collided again, when he goes into protective mode after her father was taken down.
Rocco could be a killing machine but he was taught that way and not to love from an early age. But with Grace he can only be loving and protective.
This was an exciting second chance at love type story!