Yukio smiled patiently. He was a teacher, after all, and this, while not a part of his normal curriculum, was doing wonders to help him forget his own troubles.

"It's the kickback you get when you fire a gun. All the force used to propel the bullet forward has to go somewhere, and it can be a shock when you're not prepared for it. I'll help you with that." He nods towards his hands, still clasped around her own.