In Xian No. 4 Middle School, Murong Ziying and Han Lingsha are making people sigh in all kinds of ways.
In Ancient Sword, Ziyin said that he has a friend who is free and unrestrained, a friend who is in the demon world, and a friend who is proficient in tomb robbing. But he didn't talk about himself.
Murong Ziying = Ziyin Zisha
The background of the upper fairy four
Lower ancient sword background