A novel where MC is strong from the start, but instead of slapping in the face or any Munchkin nonsense, I want it to be a mystery and reveal the secrets. I can tolerate harems as long as there is a balance of male and female characters. NO BL!
Dont forget to tell me after you find one! Jokes aside, there are some LOTM and RI is good. Turbilation of myriad races is the one i am currently reading. Martial Arts Master (from the author of LOTM) is fantastic action+ romance novel.it has the best romance i have ever read in Chinese fiction. Oh and "I Eat Tomatoes" is one of my favourite author of all time.His novels are very very very good and he is very good with character development. These novels doesnt have face slapping and idiotic Young masters.
The Regressed Demon Lord is Kind I think this is 100% what you asked for. Edit: also some additional novels that came to my mind and fits your criteria: Reincarnator I’m an Infinite Regressor, But I’ve Got Stories to Tell I Shall Be Everlasting In the World of Immortals My Longevity Simulation Infinite Bloodcore (from the author of RI) I'll Quit Being a God