Four-Tailed Fox's Fury, Absolute Power! Huge Gains! The Demon Guiding Society Genius from Five Hundred Years Ago

Amid the deafening roar, the small wooden fish that had landed on the ground finally shattered completely in the eyes of Uesugi Tetsu, who was rapidly retreating!

In its place, ancient wood and black rock slowly surged out from the wooden fish's darkness, while blazing flames suddenly swelled in the breeze.

Uesugi Tetsu stared fixedly at the unknown Demon that had expanded from the size of a fist to the height of a person in the space of a breath—and was still growing. He no longer spared even a glance for the Daruma beside him.

Because the moment the wooden fish appeared, the mirror in his heart had begun trembling violently, bringing with it an indescribable sense of crisis!

It wasn't that Uesugi Tetsu didn't want to seize this "transformation time" and unleash his full strength in a single slash.

Rather, his instincts told him not to.

If he tried to exploit this so-called opening and attack, his fate would probably be tragic.

Then he would wait.

Uesugi Tetsu gripped the completely oblivious, still abnormally excited Kaga Kiyomitsu tightly. He drew the Corona Qi circulation and lightning back to the surface of his body, ready at any moment to face the first strike of this unknown Great Demon.

Under his silent gaze, a majestic Demon stood upon the earth—far taller and more robust than the Mountain Whale King, almost comparable to the fully awakened Kisaragi Station.

The left half of this mountain-sized Demon consisted of interwoven, thick, emerald ancient wood.

Exposed gray rock could vaguely be seen at the joints, while dense, damp moss spread across it like some mysterious ancient symbol.

The right half revealed volcanic rock shaped like powerful muscles.

Its thick texture was cracked, and sparks of crimson-gold radiance bloomed between the dark-red stone veins. With every