Lin Wan, a graduate student in the Department of History, was flipping through the Ming Dynasty notebook "Jinling Zazu" when she accidentally encountered the secret hidden in the pages - a line of Juanxiu's annotation "I am very lucky to live the rest of my life, and grow old together with you", which was completely contrary to the tragic historical facts she knew. After being dizzy, she traveled through time and became Gu Jinlan, the daughter of Gu Zhengqing, a household doctor during the Jiajing period. According to historical records, she was a 16-year-old girl who was about to drown herself in love.
At the time of despair, the song "Pipa Yu" played at the Qinhuai Lantern Festival allowed her to capture another gaze that did not belong to this era. Su Yichen, the son of a scholar from Su University - Zhou Rui, an architecture student who had been trapped for five years in the Ming Dynasty. The two used poems and notes as a bridge to confirm each other's identities, and became each other's only light within the deep wall four hundred years ago.
However, history refuses to let them go easily. The imperial edict suddenly descends, and the emperor grants marriage to the playboy Zhao Chengyu; in the Zixia Mountains, the cult "Zongzhejiao" abducts women, and the underground city hides the lost secrets of Xixia; an unexpectedly discovered iron kite manufacturing manual involves military secrets that can change the war situation in northern Xinjiang. Using modern knowledge as their blade, they deal with conflicts in the court and dangers in the world. Every decision they make asks: Where is the limit of rewriting history?
From the startling glimpse of the Qinhuai River, to the holding hands of Shili Hongzhuang; from the deduction of drawings in the study room late at night, to the white hair under the magnolia tree. Lin Wan and Zhou Rui spent a lifetime answering that original question - when time travel is no longer an adventure but a daily routine, when two lonely souls find each other in a different world, the so-called "wonderful years" are just every morning and evening spent with you.
