Isn't it called Ninpo: Kumosokai? I'm re-reading the manga and that's what it says. I've checked a bunch of different manga sites and they all say "Ninpou Kumo Soukai". Does the Ninpo part just not matter, or is it a translation error or something? (talk) 22:02, April 1, 2013 (UTC)

Ninpō means "Ninja Art", which as a suffix can be added to pretty much all ninjutsu, so we tend to drop it. Omnibender - Talk - Contributions 23:01, April 1, 2013 (UTC)
Besides, give that this was given a databook profile, I think the profile dropped it as well. Omnibender - Talk - Contributions 13:18, April 2, 2013 (UTC)