I've been wondering for a while are all the martial arts and martial art techniques in this series real? I used to be a former karate student, so I do know that the karate techniques used in the beginning 200~ chapters are legit.
As the series progressed, however, the karate techniques started to become a lot more complex and I have never even heard of them before.
Then they also started deviating from the standard martial arts and introduced some like pencak silat (which I never knew existed before).
If there are some fake styles or techniques, which ones are there*?
*Please don't use unreal fights to disprove. For example, when Akisame fought against that other master and they proceeded to counter-throw each others counter-throw, ultimately leaving them suspended in midair for half the chapter. The technique of a counter throw is real, but the manga just used it unrealistically.