@Serenata, it strangely is close to that, I've pointed out before that it's strange how lightning style is pictured to stand up to Kure, but fore some reason there exist an "advance" that is too created to stand up to Kure, I wonder where and from who did Ohma learned it, if this bootcamp flashback is indeed over with both Niko and Ohma alive.
@Big_Boss
What so strange about that? Nowadays even rivals have to existed in pairs?
They have 1000 years of history compete with each other, meanwhile someone else got a feud with Kure and developed another technique to fight them. It's not like Mikazuchi clan had the monopoly on that rivalry stuff. From their reaction, Kure clan doesn't seem to know about "advance" either.
@fifthtouch
Well, they have numbers and weapons. Guaranteed to boost the mobs' morale a lot.
But hey, Ohma doesn't need to hit on girls. They come to hit on him.
Who was Niko's friend that died? Did Niko kill him as a part of the training? Why do Setsuna and Akito know some of the Niko style techniques? What is Nil Kata? So many questions!