Looking for books like Clan Cultivation: I Am the Guardian Spirit Beast of the Clan. No characters suddenly becoming stupid, and a slow pace is fine, as long as it's something I can keep reading for a long time. Spiritual qi revival, exploration, semi-hidden mastermind, or crossover martial arts stories are all welcome.
The first is a life-sims type, where the protagonist keeps reincarnating and looking for ways to break the situation. The second is about a heroine who has no system. The third is a system novel, where the protagonist is an old pervert (◕ˇ∀ˇ◕)