Zhang's ancestral home is Changbai Mountain in Northeast China.
This is a mysterious Zhang family, which has existed since the history of China. They get a lot of secret dating information from ancient tombs, and they are the only family that knows the true shape of the world.
People in this family live a long life and have a special constitution. In order to keep family secrets and blood, they never intermarry with the outside world. "Kirin blood" is also a symbol of this family. Only those who have "Kirin blood" can become "the patriarch of Zhang Qiling". People who have Kirin blood must marry women who also have Kirin blood at home, so as to increase the chances for future generations to acquire this ability.
Therefore, the Zhang family is powerful and numerous.