The main character of this novel was low-key but powerful. Did he have relatives?

I recommend "City, I Have 10 Billion Attribute Points" to you. The main character, Wang Zhenyu, was very low-key, but with the activation of the system, he became even stronger. He had a seriously ill mother and his fiancée's family who were unwilling to pay back the money, and he also had a strong family relationship with his family. I hope you like this fairy's recommendation. Muah ~😗