English name Empty Space

This is from the Kata Gyokko Ryu Ninjutsu Kosshijutsu Jo ryaku no maki

This is from the Ryu Ha Gyokko Ryu Ninjutsu

Short Description High block, arm chop, pivot, kick to calf head, boshi ken

Koku (Empty Space)


This technique"s meaning is to make somebody kick to an empty space. The important point in this technique is leaving your lower body in a place that the Uke can easily kick. Another important point is the three directions for stepping with the right foot, depending upon the distance.

Both clasp both hands in Tenryaku Uchu Gassho and bow to each other. Then, both you and the Uke stand in Ichimonji no Kamae.

As the Uke punches to Men, step off to the right between 45 / 90 degrees, sink the hips, and strike with the left knuckles to Hoshi. Then, strike once more to Hoshi with a right Shuto whilst lifting the hips and shifting across (this is done to break the Ukes elbow).

Your body position when you finish this movement invites a kick to the groin. As the Uke kicks to your groin, pull the right leg back and around to the left to avoid this, and kick to the Ukes kicking leg with the left.

There are three ways of doing this.

1, If your leg is pulled back, kick to Kobura.

2, If the leg is pulled back but the distance is close, kick to the thigh.

3, If Yoko Aruki is used with your right leg instead of pulling the leg

back as with the previous 2 examples, use the knee to the point called


Lastly, allow your whole body to fall into a Boshi Ken strike to Butsumetsu from the Kick. This is very powerful.

Return to Ichimonji no Kamae and Zanshin.

It is better to talk of love than war.