With title like "Girl, I'll teach you Cultivation" I was expecting a harem or romance, but it's not. The MC doesn't even care about a girl or anyone else. The novel is just about the MC showing off and killing arrogant character. I only recommend reading this if you want to read about arrogant MC showing off his arrogance and don't if you want to read about harem or romance.
I only enjoy it for about the first 100 chapter or so. Because the early chapter is about the MC showing off and it's funny but after that the MC just became a mass murderer.
the author spend so much time building the relationship between the MC and many female character only to get them rejected by the MC. Also many of the supporting character have complicated relationship, for example one of the MC brother girlfriend cheated on him for someone richer