What is the main story of Two Cities in the Mirror?

At the end of the novel A Tale of Two Cities in a Mirror: After the death of sumo, Bai Ying decided to stay in the funeral tower to accompany sumo, and Zhen Lan became the emperor of Kongsang. When he was dying, Bai Ying came back and went to Hui Gui with him. Then Yan Xi succeeded to the throne and became a new seafood. He was born with that girl and got married, and then that girl got a car.

"Mirror Twin Cities" mainly focuses on the Miao girl Na Sheng. In order to escape the war, Na Sheng wants to find his dream home, but in fact, the cloud shortage is not a legendary fairyland. Na Sheng finally found the cloud shortage, but as she stepped into the cloud shortage step by step, Na Sheng began to experience something seemingly bizarre, completely subverting her cognition.