Its actually very good, the only issue I have now(in chapter 220) is the headache from 7 sisters, they get involved in so much stuff and a lot of things are happening at the same time, I am not sure that I am a fan of this plot development
Author honestly ruined it by allowing him to use his cheat for martial arts, goes against the initial premise imo. Also that young master needing to pay him a lot of money and to study calligraphy for living in his house is genuinely stupid, really lame justification