Immediately after that supreme technique was unleashed, the dimly lit tunnel was filled with deep blue aurora light resembling a midsummer azure sky, and the terrifying shockwave that spread out a moment later rolled up and destroyed everything in the tunnel, accompanied by 'black lightning'.
Typhoons, tornadoes, nuclear explosions. The storm of destruction that seemed like a mixture of all of them was, despite everything, merely the 'aftermath'.
Its source—Naoya, who charged into the wall of atmosphere that had been adiabatically compressed into shining blue plasma, sprinting while continuously triggering 'Black Flash' with his entire body—had a speed of approximately 28,000 kilometers per hour.
'Black Flash.'
'It is not a technique, but a phenomenon.'
'The moment cursed energy collides within 0.000001 seconds of a physical impact, space distorts, and cursed energy flashes black.'
'In other words.'
Every single movement of Naoya Zen'in, who layered '240 frames' of Projection Sorcery per second to intrude upon the world of 0.000001 seconds, generates a 'Black Flash'.
And that means the immense kinetic energy released by Naoya, sprinting at the First Cosmic Velocity and possessing energy exceeding a Magnitude 3 earthquake even on its own, is raised to the 'power of 2.5'...!
The total energy released by Naoya's Black Flash at top speed is equivalent to 1.5 million Tsar Bombas, the strongest nuclear weapon of mankind!
Astronomical destructive power comparable to the total energy the Earth receives from the Sun in 20 days blows everything away, accompanied by spatial distortion...!
The tunnel, the hag, everything is blown away by the mere aftermath of the 'sprint', and both the path Naoya runs and the path he ran are annihilated by black lightning and blue aurora.
—Immediately after, what spreads out before Naoya's eyes is the scenery of the original abandoned tunnel. In that instant, Naoya ignores all energy via Projection Sorcery and 'stops' along with the surrounding atmosphere, suppressing the influence of the destructive super-speed to a minimum. However, even though it was a microscopic time even smaller than an instant, the comet of destruction that manifested in 'reality' blew the curtain-covered mountain apart from inside the tunnel, and the mountain, having received a ridiculous impact, caused a flashy landslide.
"Oops... I'll blame it on the active fault."
Naoya, who jumped out of the landslide scratching his head with a bitter smile, was a 'normal' 14-year-old to the extent that one couldn't believe he was a human comet running at 23 times the speed of sound just moments ago.
If the strongest sorcerer of the modern era is Satoru Gojo, then the fastest sorcerer of the modern era is unmistakably Naoya Zen'in.
The 'Special Grade Sorcerer', having fully demonstrated his ability, put the 'hag's residuals' he had tentatively located into his mouth, grimacing grandly, and trudged down the collapsed old national highway.
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