Kim Jae was living a normal teenage life. She hung out with her family and friends. She was moving on from the accident.  To her friends and family, she was a bright, happy girl. To an outsider she was a cold and closed off girl. She cut herself off from others. She built a shield around her heart. A shield to protect herself from getting hurt anymore. A shield no one was able to get past. Until Yixing came along.