This series is an adaptation of the light novel by Mo Xiang Tong Chou.
800 years ago, the Xian Le nation existed. This kingdom was vast, possessing enormous resources. Xie Lan, the crown prince, was a gifted young man who was not attracted by power and wanted to "save the world". At the age of 17, he passed the divine tests and was granted immortality.
However, he was twice exiled from paradise and became the mockery of the three kingdoms.
On his third return to paradise, Xie Lan crossed paths with Hua Cheng, the fearsome ghost king.