"Boom—!"
The explosion of air burst forth like a clap of thunder.
It was caused by the surging magic power that suddenly erupted from Luo Zhen.
It was as if dozens of kilograms of gasoline had suddenly been poured into a quietly burning flame. The magic flames burning around Luo Zhen instantly surged, whipping up a hurricane and unleashing a shockwave, making the crimson wings behind him and his crimson eyes appear so dazzling in the dark night.
"Senpai...!?"
Yukina, standing behind Luo Zhen, was driven back several steps by the sudden wave of magic power, her face filled with shock.
"Yao...?"
Nagisa, who was holding Aurora, widened her eyes.
"Uu..."
Aurora's eyes lit up.
After all, among everyone present, Aurora alone had witnessed a scene like this before.
—"Crimson Wing Formation."
The secret technique that could instantly increase magic power tenfold had now been activated by Luo Zhen without hesitation.
After connecting the two Command Seals on his left and right hands, Luo Zhen's "Crimson Wing Formation" had been left with only its normal tenfold amplification. The power beyond that, together with the Command Seal on his left hand that had been used to activate the "Crimson Wing Formation," had transformed into three secret spells. Sealed away, they had sunk into Luo Zhen's body and become his trump card.
Therefore, without undoing the three secret spells, Luo Zhen's "Crimson Wing Formation" was restricted to a tenfold amplification. This was Luo Zhen's own adjustment.
However, even with only a tenfold amplification, the normal "Crimson Wing Formation" Luo Zhen used was completely different from before.
How was it different?
Its consumption.
Now, when Luo Zhen used the "Crimson Wing Formation" at its normal tenfold amplification, the secret technique consumed far less blood.
The reason for this was that nine Calamity-level Familiars