A massive cube-shaped island floated in the sky thousands of meters high.
This cube-shaped island was naturally the headquarters of Tartaros.
Zooming in on the top of the cube-shaped island.
An ancient structure stood upon it.
Silver, clad in armor, walked along a corridor inside the structure.
Soon, a group of demons appeared in his field of vision.
The one leading them was a female demon wearing a helmet.
Looking at the female demon, Silver greeted: "Long time no see, Kyoka-sama!"
That's right, this helmet-wearing female demon was Kyoka of the Nine Demon Gates.
Hearing Silver, Kyoka turned her body sideways to look: "So it's Silver. I didn't expect you to come in this form."
"I prefer it this way."
Silver curved the corner of his mouth into a smile.
As they spoke, Kyoka and Silver walked into a large hall.
Inside the hall were five people.
To be precise, five demons.
These five demons were none other than five of the Nine Demon Gates.
Silver scanned the five demons, then asked Kyoka: "Aren't Seilah and Jackal coming?"
"They're on a mission. They should be back…"
Kyoka originally meant to say: They should be back soon…
But before she could finish her sentence, she seemed to sense something and immediately turned to look at the sky outside the hall.
"What is it?"
Kyoka's voice cut off abruptly, and Silver casually asked.
As he spoke, he also followed Kyoka's gaze outside the hall.
Then, Silver saw a huge black shadow diving towards them from above the clouds.
"That is…"
"Hey, hey, for real? It's a dragon?!"
Silver's eyes moved slightly. When he clearly saw the true form of the huge black shadow, a rare look of resignation appeared on his usually listless face.
That's right, resignation.
If an ordinary person saw a dragon, they would surely feel fear.
But Silver?
He was originally a dead man, currently existing only as a reanimated corpse.
Even if Acnologia came, he wouldn't feel any emotional fluctuation.
At most, he'd just die again.
Just as Silver felt resigned, Kyoka beside him didn't hesitate at all and immediately walked further into the hall.
When she reached a shadowy corner at the front of the hall, she knelt on one knee and said respectfully: "Master, a dragon is approaching!"
'A dragon?'
Hearing Kyoka, the five Nine Demon Gates' members present were all shocked.
They all immediately headed towards the main entrance.
It seemed they wanted to confirm if a dragon was really coming.
At the same time, from the darkness in front of Kyoka, a voice devoid of any emotional fluctuation suddenly came.
"I am not the Master. Our Master is END."
"Yes, Underworld King, Mard Geer-sama!"
Not long after Kyoka spoke, a man slowly walked out from the darkness.
The man had long black hair and held a thick book in his arms.
He looked gentle and refined.
But if you really thought he was gentle and refined, you would be greatly mistaken.
This man was the Underworld King, Mard Geer Tartaros.
The Underworld King ignored Kyoka. He walked directly past her and finally stood behind the five Nine Demon Gates' members, looking up at the outside.
"A dragon? Now that's a rarity. How much is a dragon worth? How much is it worth?"
The one-eyed demon, who resembled a robot, looked at the dragon in the sky and spoke excitedly.
"I never thought there were still living dragons in this world!"
"What is this dragon doing here?"
As the Nine Demon Gates' members chattered, the Underworld King narrowed his eyes slightly, as if he had discovered something.
"Those are... humans?"
The Underworld King looked at the black dots on the dragon's back and thought to himself.
The dragon now in the sight of the Underworld King and the others was indeed the steel dragon controlled by Kenichi.
And the black dots in the Underworld King's vision were naturally Kenichi, Erza, Mirajane, Wendy, and Seilah.
"I never thought a place like this existed up in the sky!"
Erza looked down at the huge cube-shaped island and exclaimed in amazement.
"That building has the scent of many demons!"
Wendy stared at the huge building on the cube-shaped island and spoke gravely.
"It seems this is Tartaros. I never thought Tartaros would be in the sky!"
Erza looked at Seilah beside her, whose expression wasn't very good.
"Let's greet everyone in Tartaros first!"
Kenichi first glanced at Seilah, then walked to the front of the steel dragon, looking down at the huge building from his high position.
Just as Wendy was wondering how Kenichi planned to greet demons, the steel dragon beneath Kenichi suddenly raised its head and opened its huge mouth.
Bzzzt-
They saw the steel dragon's abdomen contract, and an incredibly dazzling light erupted from its huge maw.
Seeing this scene, a black line appeared on Wendy's forehead.
Now she understood what Kenichi meant by 'greeting'.
"Such powerful magical power. Does that dragon intend to destroy the entire Cube?"
The skeleton figure holding a demonic staff and emitting a strange aura looked at the dazzling white light and spoke.
"Destroy the entire Cube?"
Hearing the skeleton's words, the one-eyed demon immediately jumped up in a panic.
"Stop it! Do you know how much this Cube is worth?!"
While the one-eyed demon was shouting, the Underworld King beside him spoke in a flat tone: "Silence, Franmalth."
As soon as the Underworld King spoke, the one-eyed demon instantly fell silent, not making another sound.
Then, under the watchful eyes of all the demons, the steel dragon fired a massive pillar of magical power from its mouth.
Simultaneously, the dazzling light emitted by the magical pillar enveloped the Nine Demon Gates, the Underworld King, and the other demons.
However, looking at the rapidly enlarging pillar of magical power, a mocking expression appeared on the Underworld King's face.
"Trying to wipe out all of us demons in one go?"
"Can't let you have your way."
After saying this calmly, the Underworld King raised his lowered arm in a motion that seemed slow but was actually fast.
"Cube, Transform!"
As soon as the Underworld King finished speaking, the originally cube-shaped island suddenly transformed into a huge monster.
The massive monster flipped over violently.
At the same time, the magical pillar fired by the steel dragon crashed onto the transformed Cube.