The purpose could be to limit the enemy's movements on one side while using your other hand to attack.Can't say I really get it.
If you want to restrict someone without killing them, wouldn't it be better to just disable the arms or the eyes?Let's switch places.*FWYU**DO——N!!**fwu——ff...*Hmm. Maybe it's for tournament use, or some kind of training.I'll give it a try.