Zhou Wan traveled to the Republic of China and became his great-grandmother, a daughter who was about to marry into a wealthy family. She doesn't want to change history, she just wants to know a secret - whether her great-grandfather loves her great-grandmother. Gu Tingxuan is her fiancé. He looks as gentle as jade, but in fact he is hated by the country and his family. Zhou Wan slowly discovered that his great-grandfather did not love his great-grandmother, but he protected her throughout his life. History has not changed, but Zhou Wan understood what "achievement cannot be achieved through love". After returning to modern times, she placed a bouquet of flowers in front of her great-grandmother's tombstone and said, "He loved you, but you didn't know it."