I don't know what Kyu shin do is but there is an art called To Shin Do. Its an art that was founded by Steven Kay Hayes. Its a updated version of Ninjutsu for the modern day. Here is a link to it. I don't know if this is what your talking about or not.
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"You must eat bitter before you can taste sweet"- Iron & Silk
"I see no virtue where I smell no sweat"
"Arm yourself because no one else here will save you" - Chris Cornell
