In Love With Vengeful Billionaire

Cali is aware that she is falling hard for Niklaus Pierre, the cold, calculated, and immensely sexy billionaire hell-bent on regaining what is rightfully his from his father and her boss, whom he despises to the core. Cali made a vow to Niklaus's father years ago that she now greatly regrets, which would unavoidably put her on Niklaus's opposing side. Which side should she take in this conflict between father and son? The father she vowed loyalty to or the son she is fascinated with? Is she the cure for this broken father-son relationship? Or is she simply collateral damage in the conflict between two men?