Well genjutsu is ability to place your opponent under a illusion. Genjutsu requires chakra and some even hand seals but the difference between genjutsu and other abilities like ninjutsu, basic 5 etc is that with genjusu you don't target the opponent's body, attacking them, you target their brain and once you send your chakra onto your opponents brain, you place under your illusion.
Well one of the abilities of the sharingan is genjutsu. They are known to be experts in that field. By seeing the chakra they can notice if they are placed in one. They can simply place their opponent under their genjutsu by making eye contact with them. >_<
Well one of the abilities of the sharingan is genjutsu. They are known to be experts in that field. By seeing the chakra they can notice if they are placed in one. They can simply place their opponent under their genjutsu by making eye contact with them. >_<