An ancient Karate technique that allows the user to pretend to stand on one leg, but actually stand on the other leg. The opponent is fooled by the stance and defends for the wrong leg, even thinking that the user is stepping forward but actually is taking a back step. They then see the wrong leg move forward when actually the opposite leg comes in unexpectedly.
This move uses the oblique muscles to switch the leg with the center of gravity, separating the balance between the upper and lower body. When most people kick, the upper body leans to signal which leg is being used. However, the center of gravity is actually on the grounded leg, which kicks the opponent.