A novel like "Turns out to be a genius Duelist". MC mainly focuses on getting stronger - no unnecessary whining about his emotions and stuff. And he's not OP: fights hard for his wins but pulls through without getting his ass handed to him. And he's not a bastard or villain, but also doesn't go too out of his way to help people. Idk, I've tried quite a few tower-climbing and other novels but nothing has been able to quench the thirst that this novel created.