Board Thread:Naruto Discussions/@comment-31338621-20190211020144/@comment-9782468-20190211061539

Genjutsu is exceedingly hard to pull off because you have to fool the senses. SOmething as easy as forgetting a shadow can tip off a Shinobi that they're in a Genjutsu.

The Sharingan takes in all details at once, so Sharingans can usually detect Genjutsu is happening immediately. Once that's done, a simple disruption of their own chakra frees them from the Genjutsu.

Idk what you mean when you're saying the victim's chakra can't be irregular; do you mean when they're in a Genjutsu?

You don't have to stop the flow of chakra from the castor. You have to disrupt the victim's chakra by injecting your own or in the victim's case, disrupting their own.