English name Ninja Sword Draw
This is from the Kata Togakure ryu Ninja Biken
This is from the Ryu Ha Togakure Ryu Ninjutsu
Ninja Iai (Ninja Sword Draw)
The point of this technique is to suddenly cut the Uke taking advantage of your shorter blade. You begin from Shizen-Tai with the right foot forwards. You let the Uke begin to draw first. At that instant, you draw and cut to the Ukes wrists in a flash.
How you do this is dependant on the distance. If the Uke is not close enough for you to cut, step in with the right foot - if the Uke is close enough, step back with the left foot - if the Uke is too close, use the end of the tsuka to smash his hand or elbow.
When you have cut to the wrist, press down with your right hand on the back of the blade and press the Uke to the floor to control the Uke - also hook the Ukes wrist with your fingers. This is a part of Tai Wari Itto (the final technique in the densho). This, along with smashing into the Ukes hand with the end of the tsuka are methods of Koppojutsu.
For Iai, you can also drop to the left knee to cut underneath the Ukes wrist.
Revenge has a long memory.