As I said it Taijutsu and body move as one learn this first know how and why where and what to do in this type of combat the studies is hard even those it basic skill of the shinobi and samurai there no best secrets in combat some say it isn't a combat skill.
Why the skill got turn on then turn off after the scroll come out that confused a lot Ninjutsu students in modern time in past was a skill of combat learning around samurai armor kinhon by pass hard contacted of armor as will the samurai knew this as will !
Modern time samurai armor isn't worn any more because it isn't call for that status there people like ever one else but sword school of samurai still in swing still in this time kinhon is same way even those shinobi on mono not around or is it the art is still made for the time learn what make our muscle tick how to body work what limes arm a leg or joint have if bent or hit in way knock back to ground our joint can so much pressure then it snap like twig or like branch of tree kin hon work that play field braking balances of the enemy not use to much force but enough to make man go down right hold locks and hits make unarmed combat an martial art or the way.
What holds on this type of combat will bujinkan studies as it is go with modern way as I know so far there do classic and modern application's of kinhon as learn this in bujinkan free black belt course only year in it after that I will find another school the hater still don't think that I can learn by watching video's so far I have prove my skill match tex book ninjutsu to a T surpass it by leap's long with hanbo and ninja to and other weapon I might not be the best in their eyes only one can say my teacher for now and he like the hard work I put every studies