Key idea
Compare a persistent outside hook with a reaping action.
For right , stays close outside right side and directs Uke toward the right rear corner. Tori’s left foot hooks behind Uke’s right ankle and stays connected while the upper body guides Uke backward over the trapped support. Mirror on the left. Unlike , the foot maintains a hook rather than reaping through. Keep the contact low at the ankle; do not collapse sideways across Uke’s knee.