"Underworld Dog!!"
The Disaster Heatblast roared.
His fist detonated with overwhelming force as magma erupted like a missile barrage!
PFFT!!
A single Underworld Dog tore straight through the Demon God Shadow, piercing it cleanly—
Instantly killing it.
This was the true nature of the Disaster Heatblast.
The disaster he represented was volcanic eruption.
He could manipulate all heat energy on Earth, awaken dormant volcanoes, and command magma itself.
Earlier—
Ethen had merely been stalling, deliberately pressuring Ben to retreat from the battlefield.
Now—
This was the Disaster Heatblast at full power.
"No… impossible!!" Hex's eyes were bloodshot with disbelief.
"One punch… pierced through my Demon God body?!"
Roaring in fury, Hex condensed endless black demonic flames and hurled them toward Heatblast!
"Do you really think— that kind of attack can still affect me?"
The Disaster Heatblast smiled coldly.
With a flick of one finger, magma surged again, condensing into a razor-sharp magma spear.
The spear pierced through the demonic flames effortlessly.
In the blink of an eye—
It arrived right in front of Hex.
BANG!!
Hex's expression twisted in terror.
Before he could react, the magma spear slammed into him and sent him flying!
"This isn't ordinary magma," Heatblast said calmly.
"It's magma infused with disaster authority—capable of destroying everything."
Hex crashed to the ground in the distance.
Heatblast watched him with contempt.
Hex.
You want to challenge the Disaster Heatblast?
Then first surpass Knight Watch Heatblast.
Then Ultimate Heatblast.
"Damn it…! I've already sacrificed everything—I can't lose again!!"
Hex staggered to his feet, face twisted in madness as he muttered forbidden incantations.
"Underworld Dog."
"Underworld Dog."
Heatblast didn't bother responding.
He simply released one Underworld Dog after another.
Every forbidden spell.
Every trump card.
Every desperate technique—
All of them were crushed mercilessly.
Even Hex's black robe was scorched by magma, burned through in several places.
Beneath it—
His skin was revealed.
Covered in black scales.
Completely inhuman.
"To defeat me, you even stopped being human?" Heatblast paused, then clapped mockingly.
"What's funny is—even like this, you're still not my match. And I can always turn back. But you? You can't."
The words struck like a second killing blow.
"AAAAHHH!!"
Hex raised his hands in desperation—
But no power responded.
His strength was gone.
His body collapsed heavily to the ground.
Completely exhausted.
Meanwhile—
Heatblast stood there casually.
As if this entire fight had been nothing more than a game.
The outcome was clear.
[Ding! Congratulations to the host for completing the mission!]
[Mission reward: 40 reward points.]
Heatblast's lips curved slightly.
That felt good.
If he had used the Love Watch or the Error Watch—
This fight would never have been so clean.
Inside the exhibition hall—
"Great god!!"
"Kill the Demon King!!"
The crowd erupted.
Worship.
Fanatic admiration.
No one could stay rational after witnessing the power of the Disaster Heatblast.
Their worldview had shattered—
Replaced entirely by awe.
"…"
Charmcaster's thoughts raced.
She suddenly raised her hands.
"I—I'm guilty! I surrender!"
"Huh?!" Grandpa Max and Gwen stared at her in disbelief.
This evil witch—
Surrendered way too fast.
"Charmcaster!!" Hex screamed desperately.
"Give me the Bezier Magic Amulet! Only it can turn the tide—hurry!!"
His voice cracked with hysteria.
Charmcaster's face darkened.
My dear uncle…
That monster, and the girl who wanted your artifact—
They're all listening.
"You won't get away with it," Gwen said coldly.
"No, no, no."
Charmcaster waved her hands frantically, then forced a polite smile toward Heatblast.
"Hex and I aren't close. He's just a… distant uncle."
PFFT!!
Hex spat out a mouthful of blood, nearly rolling his eyes in rage.
Heatblast finally spoke again.
"What exactly happened to your body?"
Hex laughed bitterly and pulled up his sleeve.
"We black mages worship the Black Magic God. His power is fast and overwhelming—but it corrodes the mind. It's only suitable for monsters like me."
He yanked up his sleeve further.
His body was almost entirely covered in black scales.
"I used one of the Black Magic God's old relics. It gave me immense power. And turned me into this."
A monster.
Humans willingly becoming monsters for power.
How ridiculous.
Heatblast stared at him, unimpressed.
"So if you get the Bezier Magic Amulet… You'll become stronger?"
"Yes!!" Hex screamed wildly.
"My magic power will multiply! I'll become unstoppable!!"
By then—
He wouldn't even know if he was still himself.
"Charmcaster," Heatblast said suddenly.
"Take out the Bezier Magic Amulet. And throw it to Hex."
"…What?" Charmcaster froze.
The air went dead silent.
Gwen, Grandpa Max, and the others thought they had misheard.
Hex laughed bitterly.
"Haha… still mocking me at a time like this?"
"I'm serious," Heatblast said flatly.
"Do it. Now."
Hands shaking, Charmcaster picked up the Bezier Magic Amulet—
And threw it.
Whoosh~
The amulet arced through the air—
And landed in front of Heatblast.
"I told you to give it to him," Heatblast cursed.
"…That wasn't a test?" Charmcaster covered her mouth, mortified.
BOOM! BOOM! BOOM!!
Hex crawled forward like a beast—
Grabbed the amulet—
And swallowed it whole.
His eyes bulged violently.
His body lifted uncontrollably into the air.
WHOOSH!!
Hex rose into the sky, roaring madly.
"Tonight is the full moon! I will fully transform! And I will tear you apart!!"
He understood it now.
Ethen let him go—
Because Ethen knew he would still lose.
Heatblast watched him silently.
His plan was simple.
Drain Hex of every last drop of potential.
No matter how strong Hex became—
The Disaster Watch could still crush him.
That was Ethen's confidence.
"Hex," Heatblast said coldly.
"I'll wait for you…
to deliver yourself to me."
He turned his gaze toward Charmcaster.
"As for your niece. She stays. As a hostage."
...
Author's Note:
The fanfic Ben 10: Daily Check-In System Activated! Part 1 is now fully completed.
The entire story has been uploaded on Patreon as a dedicated collection:
📚 Ben 10 (Chapters 1–132)
Organized into 14 posts, with multiple chapters per post for easy binge reading.
One complete 18+ novel has been uploaded on Patreon, guaranteed to give you an intense and thrilling experience.
🔥 I also have a Doraemon 18+ fanfic with smut content available for readers who enjoy exclusive mature stories. 😉
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Thank you all for your continuous support and love for this story 💙