Everett, a 5,000-year Qi cultivator hiding as a student, is called in by the Chu family for medical help. He soon realizes the eldest daughter, Celeste, is the Pure Yin Body he has searched for across millennia—and unexpectedly becomes bound to her. When the villain Thorne kidnaps the younger daughter, Cecilia, Everett rescues her, only to discover she is also a Pure Yin Body. With both Yin bodies finally gathered, his long-awaited breakthrough is within reach.