hit hard, still blocks Accel

He immediately tried to stick out his fist, but Accelerator’s foot struck the ground first.
The steel rail lying at his feet stood up as if a spring lay beneath it. The bolt in the
railroad tie popped off like a shirt button.

Before Kamijou could respond in surprise, the rising rail struck him in the chin like an
uppercut.
“Ghah...!”
His body shot up and a space of twenty centimeters opened up between his feet and the
ground. Accelerator watched that with a satisfied look and opened up his right hand like
it was a demon’s claw and aimed it for Kamijou’s airborne body.
That was the very same hand that had sent steel rails flying like bullets with just a soft
stroke.
“...!!”
Kamijou saw Accelerator’s right hand moving in toward him like a poisonous snake and
immediately struck out with his right hand despite still being in midair. In a small piece
of fortune, Kamijou’s right hand somehow managed to brush away Accelerator’s hand.
That was all he did, but Accelerator looked up at Kamijou as if he had seen something
truly unbelievable.

- Toaru Majutsu no Index Volume 3, Chapter 4 Part 6