How much can a person with a good heart and great love for her family go, when threatened with the only thing she knows how to and swore to love and protect?. This was the question that kept running in Charlotte's head when the formidable and fearful Oscar Adam kept yelling in her face and ordering her to take the wedding that was rejected by her younger sister; Lucy. “I will tear your family apart… I will make sure I stop your grandmothers’ medication, do you know how much it costs? Your salary for a whole year can’t pay her bill in a day, you both did this, you and Lucy stole from me and you helped her to escape with my money and cousin!”. Charlotte didn’t know what to say anymore when he suddenly started flaring up at her and accusing her with things that they both know she wasn’t aware of. For the love of her old Grandmother, her rude and greedy younger sister who she has made lots of sacrifices for, like dropping out of school early to work as a waitress and cleaner just to send her to school and make her most comfortable. Charlotte would have to marry the man brimming with revenge and hatred for what her little sister did to him, suffer for someone else intentional act of wickedness. “Please don’t hurt my family, i will.. I will marry you, please!” She didn’t know when the agreement rolled out of her shaky mouth. All she wanted was for her sister to have a place to come back to, she will die if she have to, just to keep her sister alive and happy, after all according to her sister she killed their parent when she was only twelve years old, it wasn’t intentional but yet they died on her birthday while trying to get her a cake. Now she’s the parent and she will go as far as the sky to take care of Lucy like her parent would have done and that include subjecting her life to an arrogant, dominant, crazy, cruel, extremely wealthy and powerful man. What will this decision bring to Charlotte's life?, is there any hope for her with Oscar who has swore to make her suffer? Can these two enemies come together to defeat their past enemies and nurture the love that keeps rearing its head in their lives? Can they end up together despite the secret and betrayals clamouring all over them? How will Charlotte manage to survive in her Substitute marriage with her sister fiance? Will her sister come back raging war on her for helping her save face by marrying Oscar after she ran away on her wedding day with his cousin and huge amounts of money?.