guillotine block 2

Kamijou held his stomach that was throbbing with pain, gathered strength in his
staggering legs, and just barely managed to stay standing.
His gut hadn’t been sliced where the guillotine had hit, but a dark bruise was still
forming.
(It looks like...I made it.)
He looked at the anti-barrier shotgun that had been bent by the shock and Itsuwa’s
spear and finally breathed a sigh of relief.
When Terra had fired his guillotine for the last time, he was aiming at Kamijou, so he
used his magic to give the guillotine precedence over Kamijou’s body. If it had directly
hit Kamijou, it would have sliced right through him.
He was still alive thanks to the powered suit’s anti-barrier shotgun that he had kicked up
right before he was hit.
Terra’s precedence was indeed powerful, but it could only change one precedence at a
time. To change from one to another, the previous setting had to be reset each time.
In other words, when the guillotine had precedence over Kamijou’s body, it did not have
precedence over other objects. So the guillotine could be stopped by putting some other
object between him and the guillotine. Already soft things like the air or a wallet
wouldn’t work, but the shotgun was metal.
The guillotine’s intrinsic power was not enough to crush internal organs. If something
strong enough was used as a shield, it wasn’t hard to defend against the attack.

One problem was what exactly counted as “Kamijou’s body”. His clothes and things he
was carrying were a bit of a gray area, but something that wasn’t even his like the
shotgun wouldn’t be counted as part of his body.
Itsuwa’s spear that Kamijou had kicked just before was an object belonging to someone
else just like the shotgun. That was why Terra had been unable to slice Kamijou in half
along with the spear. If the spear had been something that Kamijou normally carried
around, he probably would have been able to.
Kamijou had realized Terra’s weakness because of that spear. Without it, he would
probably be in two pieces right now.

- Toaru Majutsu no Index Volume 14, Chapter 4 Part 8