So the Sharingan can tell if it's user is under a genjutsu by noticing disruptions in the chakra network, right?
So what if someone who has a Sharingan, Kakashi for example, placed another Sharingan user, say Sasuke, under a genjutsu in which part of the illusion is that Sasuke sees his own chakra network is not disturbed?
Theoretically, Kakashi would know how to control the illusion so that Sasuke could not see his own chakra being disrupted, as well as any other part to the illusion, which Sasuke would accept as reality.
Yay or nay? Thoughts, feedback, etc.
*the names Kakashi and Sasuke were completely random, I don't mean to start a VS thread; they were simply for example and simplcity within the thread*