This is slowly gotten worse and worse. First of all, the puppets. They are not described at all. You barely know how they are made, what they look like, what they can do. You read the fight scene wondering how it looks like in the first place. Also a very convinient cheat power disguised as Kekkei Genkai. After it cultivation BS begins to take over the entire premise.
This would have been better as a comedy. There is no logic on how characters behave, whatever MC want just happens out of nowhere. Author is trying to make it seem comedic but story itself does not. For a concept as absurd as this, going full on comedy would have helped.
Truly one of the worst examples of kingdom build and magic novels. There is no magic here. Just replace names and the word "magic" with Chinese names and "Qi"
Bull shit MC bringing "things he learned of in prehistoric novels" to magic world. First of all, stop. It's "fantasy novels" not "prehistoric". Second, there is no logic in this world, he can just "deduce" anything he thinks. Making pills instead of potions just because. Mc talking about "brining eastern practices" as he if personally saw martial artists in his last life instead.
Also regarding kingdom building part there is none. There is no discussion of things he is doing, there is no tension no blowback, nothing goes wrong as he makes drastic changes. He says his subordinates to do something and shuts off in a room for months, comes back everything being done by his subordinates
MC knows too much and too little. I guess author is trying hard to make him not be too op, but also be too op. He does not know HP universe, but author makes MC act like he does sometimes. But my main issue is the LOTM system is hard magic system and introducing it to HP universe without explanation that makes sense just feels plain wrong, ruins the mood and does not really fit the soft magic system of HP universe.