Hei Xiazi knew from the beginning that he was doing things with money, and he didn't even accept the word "disciple" sincerely. He only took it when he saw the money. He made a lot of money from Yinwu. Later, he thought that Yinwu was like an injured bird that was raised by him, and would return to him when it cries.
Wu Xie: Wu Yin is my sister.
Yinwu to Zhang Qiling: I thought we were from the same clan
Zhang Qiling to Yinwu: I know we are of the same race
You can open it and take a look and delete it if you don't like it.
The prequels are Yinwu's stories, so they won't be opened until later.
Intention: go deep