First of all, the encounter between Yang Guo and Guo Jing is related to the identity of Yang Kang's son.

Guo Jing knew that Yang Guo was Yang Kang's son and took good care of him. Of course, he felt guilty. If Yang Guo hadn't met Guo Jing, he might have been a country boy all his life and lived a carefree life. Although he will not be rich or expensive, he will be happy and safe all his life. After meeting Guo Jing, he will begin to trace the cause of his father's death and shoulder the heavy responsibility of revenge for his father.

If he hadn't met Guo Jing, Yang Guo wouldn't have been disowned by his daughter Guo Fu. This is entirely due to the inseparable relationship with his father Yang Kang. Guo Jing and Yang Kang are sworn brothers. He can't get rid of this identity and has an inseparable relationship with Guo Rong, so his fate is very tragic.

Secondly, Yang Guo's abuse of power in Quanzhen religion is also related to this.

Although Guo Jing has no famous sayings, in fact, people in Quanzhen Sect know that this is the son of his righteous brother Yang Kang. The reason why Zhao Zhi doesn't like Yang Guo is probably aimed at Yang Kang. After all, Yang Kang has a bad reputation in the Jianghu. He is a man who regards a thief as his father, sells his master for glory, and is spurned by tens of thousands of people in the Jianghu. Qiu Chuji of Quanzhen religion, in particular, knew this very well, and therefore Yang Guo was the son of Yang Kang, so he was treated unfairly in Quanzhen religion.

In addition, Yang Guo lost his beloved and stayed with his aunt, which was also related to his identity. If he is not Yang Kang's son, I believe these people will not care too much about themselves. In a word, since Yang Guo found Guo Jing at the beginning, his life was completely changed, otherwise he would definitely have a better life than now, and Yang Guo's mother may have concealed his identity for this reason.