Wu Yu was somewhat curious about Kotoamatsukami, but not that curious.
When all was said and done, wasn't it just an extremely powerful genjutsu crutch?
Since it was genjutsu, it could be broken.
Even Infinite Tsukuyomi could be broken. Could Kotoamatsukami really be more powerful than Infinite Tsukuyomi? Could Shisui Uchiha's Mangekyō Sharingan be of a higher level than the Rinne Sharingan on Kaguya Otsutsuki's forehead?
Genjutsu, bluntly speaking, was merely the use of Chakra to disrupt the target's brain. Everyone in the ninja world knew the methods for breaking genjutsu, and there were only two: use one's own Chakra to disperse the invading genjutsu Chakra; if that failed, rely on a teammate or external force to disperse it.
A ninja's clash was ultimately a clash of Chakra.
And a clash of Chakra was ultimately a clash of Chakra [Quality] and [Quantity].
For a single genjutsu, its quantity logically could not compare to all the Chakra in someone else's body. Thus, at its core, it came down to comparing the [Quality] of the attacker's and defender's Chakra.
Teenage Itachi Uchiha could take down Orochimaru with genjutsu in a single encounter. Did that mean his understanding of genjutsu at such a young age left Orochimaru so far behind that he couldn't even see his taillights? Orochimaru had devoted decades to researching ninjutsu, not eating shit. How could that be possible?
It was simply that the Sharingan, that absurdly useful [high-quality (ocular power) Chakra] crutch, provided such an enormous boost to genjutsu's power. Even if Orochimaru was full of knowledge, even if he and Itachi Uchiha both had Genjutsu Proficiency 10, he still couldn't withstand the other side raising a hand and dropping a Fire Kirin on him.
Although Right Mysterious Orochimaru claimed that he coveted Sasuke Uchiha's body because of the