The innocent and had experience of depression and amnesia girl, KIM JENNIE will suffer another pain which is coma caused by the car accident. After 2 months she woke up at PARK CHAEYOUNG's body, her bestfriend before, who will be the soon to be wife of her ex-girlfriend LALISA MANOBAN. ROSÉ and LISA was forced by their parents to be married. But what did BAMBAM (Lisa's brother) do to convince their parents not to continue their evil plan? What is the reason why KIM JISOO hated LALISA MANOBAN so much? How can Kim Jennie can handle the truth? TRUTH OR HAPPINESS?