This is the story of Zhuo Yuanfan and Li Shuyao. The two met in college and fell in love but did not know each other. Over the long years, they both collapsed after learning the truth. At the end, one got married and had children, while the other could not let go. But it's not only Zhuo Yuanfan and Li Shuyao who can't let go, but also you and me who we missed in those years.
