It can't go both ways. Kumai doesn't need hand signs, but Kakashi needs to focus. He's gotten faster at it, but the fact remains that Kotoamatsukami is faster, and gives off no real sign of when it's about to be used or is in use. You can tell when Kakashi is about to use Kamui. And Danzo would have no problem with using Kotoamatsukami or Izanagi right off the bat.
His Kotoamatsukami can be used once a day because of the first Hokages cells, so he doesn't have to worry about not being able to use it for ten years. Izanagi was practically the first jutsu Danzo used against Sasuke when he got squished by Susanoo. And like I said before, Danzo underestimated Sasuke and he will most likely not do the same with Kakashi because he knows what he's capable of. Meaning he sees him as more of a threat.
why cant it go both ways tho, thats biased as f*ckk. look I get it koto may be the best genjutsu the ms has but its not the absoulute best jutsu. Thats left up to the user like for example tobi with his space time ninjutsu(if that is a sharingan tech). or itachi with his tsukyomi.
Kakashi has gotten alot better than the fight with diedera where he could barely focus on his. he learned how to control how much chkra to release with kumai, and how small or big he needs to make it.
for example look at when he kumaid the nail pain shot at choji going like the speed of a bullet lol..no for real did you see how fast that shit was going sheese. But anyways what im trying to say is, danzo doesnt realy know what kumai is.
he may have all these sharingans and know about koto and izunagi but thats cause they were known worldwide by powerful ninjas. he cant izanagi kamui cause he has no idea of what kumai does. you get what im saying? by the time kakashi realizes his kumai is being effected by izanagi, he will go along with danzo acting like he has no idea, and analize and rape..thats just how it will go
I honestly believe kakashi can pull it of.
yea, me too
Kotoamatsukami ^^^
Maybe if Danzo didn't have this^
let danzo have kotot. whats that even mean if he doesnt have a his head to use it