Two silhouettes could be seen amidst the smoke and debris.

One was 190 centimeters tall, he had blue hair, golden eyes and a great sword in his hands. That was Gideon.

Facing him was Rex Draco in a more human form. Long shoulder-length black hair, wearing an armor of black scales, a black mask hiding the lower face, only revealing his bright red eyes, human eyes.

"I didn't know you could transform." (Rex Draco / RD)

"I found out not long ago, but to think you could go even further, it's insane." (Gideon/ G)

"Strength is the most important factor in the world and the only thing you can trust, when you die, your own strength will be the only one with you, no one else." (RD)

"No, even if people are not around when you die, the warmth of their words and actions will stay with you, forever." (G)

Rex Draco clenched his teeth behind his mask, glaring at Gideon he let his anger out.

"You don't know anything!! People will only betray you! There is nothing you can trust but your own strength." (RD)

Raising his arm to the side, purple flames started appearing, taking the form of a one-handed long sword.

"So it's not only appearance, you have become slightly more human." (G)

Gideon raised his great sword with a smirk.

"Come at me, Rex Draco, the demonic dragon, the King of Dragons!" (G)

"If that's your wish, then I will make it real! Gideon Meyer, the Last Hero!!" (RD)

Soon the swords collided, bringing devastation to the land. Stones were obliterated and thrown around, trees were caught on fire, rivers started to evaporate, and the wind became a simple breeze compared to the shockwaves.

The ground below them started to cave in, and without separating, both of them started descending as a crater was slowly forming with them as an epicenter.

Looking into each other's eyes, they finally separated, only to collide again a few meters away.

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This process continued for a few minutes, and the once completely round crater had become a pit hole going straight down.

"For someone who just acquired a human body, your swordsmanship is the best that I ever saw, including my own." (G)

Gideon was not lying, Rex Draco's swordplay was divine, almost like it was created by gods for gods to kill gods.

"Using a sword is that easy, don't know why humans fuss over it so much." (RD)

"What a monster." (G)

Gideon muttered before hurriedly blocking a slash from Rex Draco.

Right now they were in the middle of the "pit hole" crossing blades, leaving afterimages of their arms and streaks of light on their swords.

*CRASH*

In a single swing, Gideon's sword was knocked off his hand, sending it against the wall. The hero tried recovering, using his aura to step in the air to rush in the sword's direction, but before he could, his face was grabbed by a clawed hand.

"You're not getting away, hero~" (RD)

Gideon just felt his body get dragged to the bottom of the pit alongside an explosion.

*BOOM*

"This is the end, there will not be a next time. You were lucky to have fought me three times." (RD)

"*Cough* huh, the first didn't count, I was a kid, and I couldn't even look at you properly, too." (G)

Rex Draco positioned his sword above his neck and prepared to strike down.

"Not today, bastard." (G)

Gideon raised his hand, revealing a small crystal.

"No, you fucking don't!" (RD)

Gideon crushed the crystal and disappeared. That was transportation crystal.

"Shit!" (RD)

A magic circle suddenly appeared beneath him. He suddenly started receding to his first form, his original form, one of a black dragon.

"ASTRA!! You witch!!" (RD)

From the walls and the ground, bright blue chains shot towards him, wrapping around him before shooting to the ground and walls, chaining him to the ground.

"Free me!! I said, Free me!! Mmmgh" (RD)

Suddenly, various chains appeared again, this time wrapping around his mouth and closing it forcefully. From the sky, several pillars of light shot down, pinning his wings, hands and tail to the ground.

On the other side of him, a woman with black hair and amethyst eyes faded into reality before tapping his body with her staff made of white wood and golden vines.

Rex Draco's eyes dulled, and he stopped resisting.

"What did you do?" (G)

Gideon appeared beside her and asked, he just knew to teleport away in case of defeat so that she could trap him, he was not aware of details.

"I sealed his minds to the depths of his brain, so he can't control his body, his soul was sent to The World's Crystal." (Astra/ A)

She pointed at the sphere of crystal on top of her staff, which, according to the legends, possessed an entire world inside.

"Well, he was much stronger than I was. I mean, I knew he was stronger than me, but I didn't know that the ceiling was that high." (G)

"..."(A)

"You know about him more deeply than you let me know, much more than he knows, right?" (G)

"..."(A)

"*Sigh* Whatever, his seal will cause a great power vacuum on the demonic creature's ecosystem."

"It should be fine, he was always about staying in his own corner, that's why he got the title of King of Dragons unknowingly."

With a simple magic circle, they both teleported away, not long after the demonic dragon's body was covered with several black barriers covered with several thousand runes.

This was the day the Era of Monsters ended with the defeat of Rex Dragon, the First Demon Dragon, the Last King of Dragons.