It’s the same novel. Webnovel changed names for Lady Gu, then tried to get us to read it again under a different name do they can profit off if it twice
It's the invisible Narrator telling is this. That's why it's talking about him in Third Person
This was an important sign of early-stage Flesh Refinement. In other words, in a short period of time, Zhu Wuyang had broken through from Skin Refinement Perfection to Early-stage Fleshly Body Refinement. Every move he made had more than 1,000 catties of strength, far surpassing martial artists of the same level.