several invisible hits

When he stopped, Agnese twirled the angel staff again and slammed it hard into the
nearby marble pillar.
(Oh...shit...!)
He hastily jumped to the side. The only good thing about this was that her attacks lagged
behind her command—albeit for less than a second—giving him some leeway. So he
should have just needed to keep moving to dodge the attacks, but...
The attack shouldn’t have hit—but it sank into Kamijou’s left arm and side all at once.

“Guh...!!”
The sideways blow sent Kamijou sliding down across the floor. In his sides, right from
the core of his body, burst forth a stinging pain. His left arm had been between the point
of impact and his sides, and yet the strike had slammed into both. Caught in the middle,
a joint in his left arm might have been dislocated, since he couldn’t seem to move it, and
the sense of pain in it disappeared. It just felt a little sweaty and hot all over.
Agnese struck the tip of the staff against the floor.
Kamijou immediately rolled to the side, but the impact hit him straight in the chest
anyway. He lurched, the oxygen in his lungs being forced out, and yet he still tried to
scramble backward. Agnese took the chance to promptly slit her staff with the knife and
deliver a diagonal cut to his back.
There was the sensation of strands of muscle being severed.
For some reason, there was a second before he felt the pain explode, like thunder after a
lightning strike.
“Gah, bah...aaaaaaahhhhhhhhhhhhhhhhhhhhh?!”
He writhed against the searing pain in his back—and Agnese swung her staff across. As
it collided with the marble pillar, it sent his body flying across the floor like a rock
skipping across the surface of water.
“You’re not gonna be able to keep making those dull dodges, you know.” Agnese twirled
her staff, disappointed. “Maybe there’s a little gap between my command and its
activation, but I just have to work that into where I attack to eliminate the possibility of
error. If I consider how you’ll dodge and set up my attacks in the air where you’ll dodge,
you’ll run straight into them! It’s no secret. Didn’t you realize my misses earlier were
just my feeling you out?”
Kamijou moved his head, burning with pain, and managed to listen to what she said. He
wobbled to his feet, paying attention to his stinging back.

- Toaru Majutsu no Index Volume 7, Chapter 4 Part 4