Du You wouldn't use the original control methods of this world, because these methods were birthed from the world's own consciousness. If he ever opposed the world's will, these methods would certainly become the opponent's trump card.
Therefore, what Du You needs to do is to analyze it, then reassemble all the parts he can understand, add some of his own elements, and form a secret method that completely belongs to him but doesn't contradict this world's rules.
There's no other way, after all, it's a secret method used by lower-level existences, which can only rely on rules, without being able to use the Law.
If it conflicts with the world's Law, the secret method simply won't work. Just like how many people gain abilities through cultivation in one world, which they can't use in another world.
If it weren't for Earth's Professionals having a special interface, attempting to invade other worlds wouldn't be easy.
