The building outside the building is Yan Wenyu's future husband. This is an open secret among the royal family of the Song Dynasty. Yan Wenyu spent her entire youth in the gentle dream weaved by Louwailou. Unexpectedly, she woke up one day and Louwailou disappeared. "No one in the whole of Huangnan knows Louwailou." "Ah Yu, stop looking, Louwailou is not his name." Was it a scam from the beginning? In the ten years that Yan Wenyu was searching for Louwailou, the Song Dynasty had undergone earth-shaking changes. From a princess to a noble princess of the Song Dynasty, Louwailou turned out to be an assassin of the Liao Kingdom. During these years in Huangnan, he was actually looking for Louwailou, but secretly he was helping Yan Duyu win bargaining chips in his power struggle. "I just want to ask him if he still remembers that silly girl named Ayu." "I just want to tell him that Yan Wenyu is still waiting for him." He walked directly under the tower for several springs and autumns, and left the building outside every ten years. Louwailou, where are you?