hit by dark matter wing going probably at super sonic speeds

In other words, Kakine and Rensa clashed at supersonic speeds.

***

Rensa forcefully took the attack as if sacrificing one of her arms.
“Hey.” She then grabbed that wing with her hand. “Guess what, #2? My vector control
ability can alter the vectors of anything I touch. And that means…”
“…? Oh, no! Please get out of the way…!!”
“I can manipulate your Dark Matter, you idiot!!”
With a roar, the white wing twisted unnaturally as if it was a sugar sculpture being
stretched.
It flew in an irregular and difficult to predict trajectory and mercilessly slammed into
Kamijou’s upper body.
“Bh…gh!?”
It felt less like being hit by a blunt weapon and more like being hit by a car. All of the
oxygen left his lungs in an instant. He was slammed down to the ground where he rolled
backwards until he reached Fremea.

- New Testament Volume 7 Chapter 4 Part 9