Zhou Xingchen passed away from liver cancer at the age of 36. Lin Feiran, unable to let go of the past, clung onto the memories of Zhou Xingchen and spent the rest of his life alone. Upon opening his eyes again, Lin Feiran realised he was back in his university days and found his college junior, the then 21-year-old Zhou Xingchen. This time around, their paths have crossed seven years in advance.