In the arc where Sasuke and Boruto time travelled to the past, It was mentioned that Sasuke removed the memories of everyone, well except for Kurama. Did he really forgot to remove it? or Kurama kept it all this time?
..Boruto Episode 136
There is no evidence that Sasuke removed Kurama's memories too. so, I believe Kurama knows everything.
I only remember the first time when Sasuke entered naruto.
Tenchi Bridge Reconnaissance Mission
Sasuke, with his active Sharingan, suddenly appeared within Naruto's subconscious, which surprised both Naruto and the Nine-Tails. The Nine-Tails became impressed with Sasuke's growth and ability, but as it stated that Sasuke's chakra was similar to Madara Uchiha, Sasuke effortlessly suppressed the fox's residual chakra with his Sharingan. Although angrily shocked by the display of his power, the Nine-Tails concluded that this might be its last meeting with Sasuke, so it warned him not to kill Naruto, because he would only end up regretting it.
it simply means even if Sasuke tries to enter inside naruto and talk to karuma the beast will not listen because karuma hates human and the human he hate most is UCHIHA MADARA. Also in many later episodes when naruto got lot of control over karuma. karuma always used to try to influene naruto to hate human of what they did to him. he wants to make naruto like himself. he also tries to make him remember Sasuke betrayal every time. so that means even karuma unable to recognize Sasuke.
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I want to believe it too, but on the other hand, I can't see Sasuke failing on a simple mistake. – Shizukura Feb 14 at 9:26
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Kurama's chakra is deeply connected to Naruto's chakra so I think any kind of genjutsu used on Naruto will also effect Kurama.
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The series has used the connection to come to the exact opposite conclusion. It was a big point of the never-go-alone rules in the earlier arcs that a major reason for that rule was because it was very easy to break a genjutsu if someone else simply cycles their chakra through them; else you're easily dispatched with. Tailed beast hosts are a convenient 2-in-1 package, and can in principle break each other out of genjutsu, at least if they're willing and knowing. At one point I recall Kurama specifically breaking Naruto out of one, though I can't remember when, so...grain of salt. – zibadawa timmy Feb 9 at 14:06
