Speed 4 Volume 2

In that instant, Ikki raised his upper body and ran forward!

Here!

Upon that action, Ayase opened the wounds of Mark of the Wind that were in front of Ikki. The gap in the atmosphere that suddenly opened was the guillotine of vacuum that cut everything it touched. He wouldn't come out unscratched if it touched him. But―

"Wha―!?"

Kurogane Ikki's body rushed forward like a bullet, incomparable to the speed he showed in the beginning, and left Ayase's blade behind before the vacuum opened. ―That super-speed was the same as Ittou Shura!

"What speed! Contender Kurogane finally uses his trump card Ittou Shura!"

Wh, why!? That trump card should have been sealed…!

Oreki's voice reached a baffled Ayase.

"Well, that is not Ittou Shura―"

"Eh? Is that true, Oreki-sensei?"

"That is just like everyone, he is only speeding mana emission."

Mana emission!

Ayase realized her mistake at those words.

Mana emission was to release one's mana to accelerate and enhance oneself. It was an enhancement technique that many other Blazers used unconsciously. Of course, Ayase used it as well.

"Kurogane-kun doesn't have much mana unlike other students, so if he uses it like this he will run out of mana after using it once or twice. That is why he doesn't use it normally. But, 'does not use it' is different from 'not being able to use it'. He probably, for some reason, can't use Ittou Shura this time. That's why I think he is using this as a replacement."