English name Finger break
This is from the Kata Gyokko Ryu Ninjutsu Kosshijutsu Jo ryaku no maki
This is from the Ryu Ha Gyokko Ryu Ninjutsu
Short Description Attacker grabs rear collar, cover, turn and strike solar plexus, ura gyaku.
Yubi Kudaki (Finger Break)
This technique means to crush the Ukes finger. The important point is to grasp the Ukes little finger with your right hand and at the same time, lower tour centre of gravity, and when the Uke retreats, to drive into his chest with your left finger.
Both clasp both hands in Tenryaku Uchu Gassho and bow to each other. Then, both you and the Uke stand in Ichimonji no Kamae.
The Uke approaches from behind. The Uke grabs the back of the collar with the right hand. Respond by turning in an anti-clockwise direction and place your right hand on the Ukes hand.
The Uke pulls back by stepping back with the left leg. Move with this by stepping in with the left leg and strike with Boshi Ken to Butsumetsu with the left. (Keep hold of the Ukes hand with your right).
Take the Ukes hand off in a circular motion and crush the little finger with the right hand, while holding the Ukes arm at the elbow with the left.
Move forward slightly with the right foot and bend the arm into a right-angle, (keep pressure on the little-finger). Step back on the left knee and drop the Uke. Break the little finger whilst doing this.
Stand up immediately and keep hold of the sleeve and the finger. Stamp with the right foot to Wakitsubo to finish.
The man with the clear conscience does not fear the knock on the door at midnight.