rubble to chin

Kamijou clicked his tongue and the paper giant made its next move.
Kamijou instinctually tried to get some distance between him and the giant, but the
giant kicked the ruins of the pillar it had previously destroyed. A soccer ball sized piece
struck Kamijou’s jaw from below like an uppercut.

“Gah...!?”
Kamijou bent backwards and he tasted blood spreading through his mouth.
However, the paper giant did not stop there.
Using its huge legs, it closed the distance between them with a single large step. All of
Kamijou’s weight was tilted back leaving him defenseless and this time the giant fist
made of paper that held more weight than a bookshelf flew up at him.
It seemed like a hopeless situation, but...
(...This is my chance.)
Kamijou immediately poured strength into his right fist.

- Toaru Majutsu no Index Volume 18, Chapter 6 Part 7