Even though the female lead looks twelve and the male lead looks twenty, he was seventeen and she twenty-two when they filmed this last year.

The biggest xianxia/ fantasy wuxia drama starring newcomers, Ever Night将夜, has released a full trailer. Based on the book of the same name by Maoni (Fighter of the Destiny),  the series will be released in three parts, with the first one being Ever Night: Dawn of the Empire 将夜：帝国的清晨. Relatively new actors Chen Feiyu, Song Yiren, Sun Zujun, Meng Ziyi,  Yuan Bingyan head the cast of seasoned actors like Hu Jun, Leo Lai, Ni Dahong, Adam Cheng,  Dylan Kuo, and Tong Yao.

Ning Que is a soldier who has came to the capital to clear his family. Yet when he finds out that his servant Sangsang is the embodiment of Ever Night, the foretold forever nighttime of humanity, the two go on the run.

The series was shot on-location in Xinjiang, an increasingly popular filming location where you can get the desert, vast grasslands, forests, and snowy mountains all in the same location around the same time.  If you ignore the whole castle at the beginning, the sets, clothing, and definitely directing/editing appear to be  some of the most promising of recent xianxia dramas . The on-location scenery shots are beautiful, the cast seems to have great chemistry based on the trailer, and the romantic BGM is gorgeous.

I think this is from Guizhou and not Xinjiang.