It is like a poetic river and lake, a picturesque country, with thousands of sails ready to go. Xiang Wanyu walked in alone, and the first big thing that greeted her caught her off guard. In this seemingly peaceful world, how many waves are secretly surging? Who can understand the past events of the previous dynasty thirty years ago and the present thirty years later? Is it a national conflict or a struggle for power? How should a group of young people at the forefront of the crisis make a choice? Will her gains along the way support her to go on with that person and see this great lake and mountain together?