Quick boxing top if anyone was curious - you're supposed to punch with the second and third knuckles due to the proximity of what is known as the "power line." The power line of a punch follows the pinky knuckle but you'd break it so second and third are best for punching.
I can now understand why almost all of Mori's manga seem to be about a man put into a situation that is supremely unnatural for the modern man and excelling. It's almost like a form of escapism for that lonely teen who most likely never thought it'd be alright.