There are always many secrets in the world, such as Buyun Palace and the owner of Buyun Palace.
These secrets may have caused the parties to remain silent due to the cryptic reasons, or they may have become rare due to the passage of time.
There are also young men in their prime in the world, such as Qin Chuan. They long to sing with swords and ride horses in the world of mortals, but they also have their own concerns.
The mountains are green and the water is sluggish, and the world is changing.
The cuckoos are singing all over the green hills, and the throw lasts for years.