The ancient dragon Tian Yao was riddled with gaping wounds due to a lover's betrayal, and his heart was emptied. When the dragon is reborn, he meets Yan Hui. She will protect him with all her strength in their fight to retrieve his remaining bones. Twenty years ago, Tian Yao was betrayed by the woman he loved, stripped of his dragon bones that are sealed in four directions. By chance, Tian Yao's soul escapes from the seal. He senses a seal within a lake and waits for his opportunity. Tian Yao sees a glimmer of hope upon encountering Yan Hui. She has the dragon within her that can help Tian Yao break the seal. Tian Yao uses Yan Hui for the purpose of retrieving his body parts. She tries to escape but fails, yet their relationship only grows closer. Over time, Tian Yao is moved by Yan Hui's repeated efforts to save him. She also realizes that her connection to Tian Yao can never be severed. One mystery comes after the other as she learns about her true origin. Adapted from the novel "Hu Xin" (护心) by Jiu Lu Fei Xiang (九鹭非香 ).