Under the watchful eyes of the Underworld King, Silver, and the other demons, the massive steel dragon slowly descended towards the ground below.
After the steel dragon descended to a certain height, the Underworld King, Silver, and the other demons could clearly see the appearances of Kenichi, Erza, and the others standing on the dragon's back.
Simultaneously, Kenichi, Erza, and the others also clearly saw the forms of the Underworld King, Silver, and the other demons.
"This scent…"
Wendy looked at Silver in his armor, her expression shifting slightly.
Soon, she exclaimed in surprise: "This person's scent is so similar to Gray's!"
Hearing Wendy, Mirajane and Erza also focused their gazes on Silver.
Soon, images of Gray appeared in Erza and Mirajane's minds.
Then, the image of Gray and the Silver before them overlapped.
At that moment, Mirajane and Erza said in unison: "He looks so much like Gray!"
Hearing Mirajane and Erza, Kenichi's expression remained normal.
After all, he already knew the relationship between Gray and Silver.
He just glanced at Silver, then turned his gaze to the Underworld King.
"Kill!"
Just as the steel dragon was about to land, the demon soldiers who had been ready for action all swarmed towards the steel dragon.
However, before these demon soldiers could get close to the steel dragon, the terrifying air wave generated by the massive dragon's landing sent all the demon soldiers flying.
"Erza!"
After the demon soldiers were knocked down, Kenichi called out to Erza without even turning his head.
Erza didn't hesitate, leaping down from the steel dragon's back.
The moment she landed, Erza charged in the direction Kyoka had gone.
"Could it be these humans know my plan?"
The Underworld King watched Erza pursue Kyoka, his expression shifting slightly.
Just then, the Underworld King noticed Seilah behind Kenichi and Mirajane.
"I see."
Upon seeing Seilah, the Underworld King assumed Seilah had told Kenichi and the others something, and a look of understanding appeared on his face.
"Keith!"
The Underworld King looked at Kenichi and called out to the skeleton mage behind him.
Although the Underworld King didn't say more, the skeleton mage understood his meaning.
Without a word, the skeleton mage's figure instantly turned into a strange black mist and vanished from the spot.
The next second, when he reappeared, he was already in front of Erza.
"Dark Light!"
The staff in the skeleton mage's hand instantly emitted a dazzling light.
Immediately after, numerous purple beams of light, like streams of silk, shot towards Erza.
Seeing the lights sweeping towards her, Erza, while running, tightened her grip on the sword in her hand.
Just as Erza prepared to attack the skeleton mage, a figure clad in a black robe appeared out of thin air, blocking the purple light for Erza.
"Hmm?"
Looking at this suddenly appearing person, Erza's pretty face showed slight surprise.
Soon, she realized the person who helped her block the skeleton mage's attack was actually the former master of Grimoire Heart.
'Hades?!'
'Wasn't Hades defeated by Kenichi seven years ago? Why is he here?'
Looking at Hades, many questions arose in Erza's mind.
But soon, Erza thought of something.
'Did Kenichi use that magic to subdue Hades?'
After figuring this out, Erza glanced back at Kenichi standing on the steel dragon's back.
And in reality, it was exactly as Erza thought.
This Hades before them had been controlled by Kenichi using the Human Subordination Magic seven years ago.
Over the years, Hades had been used by Kenichi as a tool to farm Magic Power attributes.
This was the first time he was being used in battle.
However, Hades's strength was not weak.
Even if his opponent was a member of the Nine Demon Gates, he probably wouldn't lose.
"A demon from Tartaros, how nostalgic. I'll be your opponent from now on!"
Hades said to the skeleton mage, then swung his two fingers together through the air.
"Amaterasu: Formula 100!"
In the next second, a purple circular magic circle appeared on the ground beneath the skeleton mage's feet.
Simultaneously, six-layered magic circles, tightly packed together, also appeared on both sides of the skeleton mage's figure.
Bzzzt-
The moment these magic circles appeared, they emitted an exceptionally dazzling light.
Immediately after, a terrifyingly loud explosion engulfed the skeleton mage's figure.
While Hades occupied the skeleton mage, Erza had long since bypassed the skeleton mage's position and continued pursuing Kyoka ahead.
At the same time, the four Nine Demon Gates' members, the one-eyed demon Franmalth, Tempester, Ezel, and Torafuzar, along with Silver, all advanced towards Kenichi, Mirajane, and the others.
Whoosh whoosh whoosh-
And soon, two figures appeared out of thin air in front of these five Nine Demon Gates' members.
These two figures were none other than Minerva, who was subdued by Kenichi in Sun Village, and Rustyrose of the Seven Kin of Purgatory, who was subdued by Kenichi seven years ago.
"Mira, Wendy, I'll leave these guys to you!"
Kenichi, looking down from his high position at the group of Nine Demon Gates' members below, called out to Mirajane and Wendy beside him. Then, his figure vanished from the steel dragon's back.
The next second, when Kenichi reappeared, he was already in front of the Underworld King, who was holding his book.
"Having those human women deal with my Nine Demon Gates... you really look down on Tartaros."
The Underworld King lowered his eyelids, looked at Kenichi, and spoke in a detached tone.
"Don't worry. They are more than enough to handle those demons."
"Now, it's your turn to entertain me. I advise you to use your full power from the start, otherwise, you'll die in an instant."
Kenichi looked at the Underworld King, a curve forming at the corner of his mouth as he spoke.
"You really are arro…"
Hearing Kenichi, the Underworld King narrowed his eyes slightly and spoke with clear displeasure.
But before he could finish his sentence, Kenichi's figure appeared behind the Underworld King.
Simultaneously, a loud noise echoed through the air.
And the Underworld King's body was shattered, just like the dragons Kenichi had instantly killed before.
"…"
The Underworld King looked at his own shattered body, his face filled with an expression of utter disbelief.
"I already warned you to use your full power."
"But even if you had, the result would probably be the same."
Kenichi looked at the fallen Underworld King and said calmly.