In high school, Bai Qinglan and Yin Yue were a close couple who made a lifelong promise to each other. However, after the college entrance examination, Yin Yue suddenly disappeared from Bai Qinglan's world and disappeared.
Six years later, under the guidance of a mysterious girl, Bai Qinglan finally found Yin Yue. Why did she leave alone? Is she doing well these years? Does she still love herself in her heart?
With this series of questions, Bai Qinglan met her lover again after six years of separation. A story of worry and fear caused by love, sadness but happiness began...