Why is Background Character the Strongest Now?

Chapter 6

There had always been one question.

A question every reader asked while reading Transmigrated as a Minor Villain.

If the demons are so strong—then why wait?

Why not crush the human alliance with their army of vampires, werewolves, and seven Archdukes?

Why delay when they could end the war in a single catastrophic invasion?

The answer came much later in the novel.

When the dragons arrived.

⸻

Every awakened being who reached Rank 8 and beyond began to understand Laws—the very principles that govern reality.

Some awakened the Law of Flame, others Wind, Gravity, Lightning, or even Time.

But none, not even the Demon Emperor, could master these laws completely.

That was the difference between mortals and dragons.

Dragons didn't "grasp" laws.

They were born from them.

KairosZeth—the Time Dragon—had mastery over time that even the Demon Emperor feared.

Four dragons once fought the seven Archdukes of the Demon Empire and won.

It was this unspoken threat—the silent agreement—that kept the Demon Emperor at bay.

If the demons start full invasion war then.

The dragons would fight.

And when dragons fought, entire continents burned.

Ezra took one step into the cave

And stepped into a different world.

Gone was the stone interior he expected.

Instead, a lush valley stretched before him. The sky was a crystalline blue, and golden sunlight bathed emerald forests and jade mountains. The mana here was so dense it was visible—floating like wisps of stardust in the air.

Ezra blinked, stunned.

"This… this isn't a cave," he whispered.

Ren grinned.

"This is a dragon's 'Den World.' Dragons are so powerful, reality bends around them."

Ezra took a deep breath. The air was thicker—but it energized his lungs. His body felt lighter, stronger, more awake.

"It's like I've been living in a trash dump… and just walked into a palace."

Ren chuckled.

"You're not wrong. Mana here is thousands of times denser. That's why dragons sleep in places like this. They are, after all, the children of the world itself."

Ezra's eyes widened.

The trees shimmered. The rocks pulsed softly with mana. Everything was… alive.

Ren stepped forward and raised his voice—infusing it with mana that rang like a bell.

"I, Ren Kurogane, 18th Sword Emperor and 10th Member of the Human High Council, have come to request an audience with the Time Dragon—KairosZeth."

Silence fell.

The world itself seemed to pause.

Then—

A voice came.

Ancient. Cold. Eternal.

"Come."

A shimmering gateway appeared in the air before them—a door carved from starlight and stone, guarded by two glowing golden dragon carvings. Runes of forgotten language shimmered along its frame.

With a loud rumble, it slowly creaked open.

Ren turned to Ezra. His expression was unusually serious.

"Don't speak out of turn. Don't lie. Don't try to act smart. Just be honest."

Ezra nodded once, tight-lipped.

He could feel it in the air.

A presence beyond comprehension was waiting inside.

Together, they walked through the gateway.

⸻

The chamber was nothing like Ezra expected.

He had entered with his heart pounding, expecting grandeur—perhaps a hall of obsidian stone and molten lava. Instead, what he found was a simple room, warm and almost… human.

A low Eastern-style table sat at the center, lined with cushions. A man was seated there, sipping tea like he had all the time in the world.

He looked no older than thirty—yet the aura around him felt ancient.

His golden-white hair fell gracefully down his shoulders, and his blue eyes held the calmness of eternity. His pale skin glowed faintly, and his symmetrical diamond-shaped face looked more carved than born.

Ezra stared.

He had never seen a man so beautiful—not even in his old world.

⸻

Ren stepped forward, a rare seriousness on his face. He bowed deeply.

"I greet Senior."

Ezra followed, stepping beside him and bowing with practiced grace.

"Ezra Celestrian greets the Great Being."

The man—KairosZeth, the Time Dragon—lifted his gaze. His blue eyes flashed as they landed on Ezra. For a moment, it felt like time froze. Then, just as calmly, he turned toward Ren and gestured.

"Come. Sit."

A cup of tea materialized beside Ren as he seated himself in a cross-legged posture.

Ezra remained standing until the dragon arched an eyebrow.

"Why are you standing? Sit, boy."

Ren smiled slightly. "Senior, he's just being respectful. He's young."

KairosZeth gave a mock sigh.

"Tch. Children these days. Just sit. I don't eat my guests."

Ezra chuckled inside. The novel hadn't lied—KairosZeth truly was the most relaxed of the four dragons. Calm, polite, and terrifyingly powerful.

He sat down beside his teacher. A cup of tea formed next to him as well.

⸻

KairosZeth took another sip of tea and finally asked, "So. Ren Kurogane. You bring your disciple to my domain… why?"

Ren scratched his cheek awkwardly. "You already know, don't you?"

KairosZeth smiled. "Of course. You're training him in my realm."

Ren didn't even pretend to be surprised.

"So… what do you think of him?"

The dragon's glowing blue eyes shifted toward Ezra.

"He has potential. Potential to become the next Sword Emperor."

Ezra stiffened. He tried to hide his surprise—but KairosZeth clearly noticed.

Ren smirked. "He's talented. He disarmed me in a duel—at Rank 3, no less."

The dragon was silent for a moment. Then he spoke as if recalling a distant past.

"Well, he is the son of Valerius Celestrian, after all."

Ezra's eyes widened.

"You knew my father?"

KairosZeth nodded slowly. "Yes. He was… mad. Kept challenging me to sword duels, saying it was the only way to 'sharpen his edge.'"

Ezra's voice cracked slightly. "How was he?"

The dragon smiled.

"Good enough to make me serious."

Ezra lowered his head, clenching his fists softly in his lap.

His father—Valerius Celestrian, the 17th Sword Emperor—had died in an ambush laid by the leader of the Dark Order, wielders of forbidden demonic arts.

"He died honorably," KairosZeth said, reading his thoughts.

"Now it's your job to ensure his name continues to shine."

Ezra nodded slowly. The burden was heavy, but he accepted it.

Ren, seeing his expression, placed a hand on his disciple's head and ruffled his hair. Ezra calmed down immediately.

KairosZeth leaned back, sipping more tea.

"Now, enough small talk. What do you want, Sword Emperor?"

Ren exhaled.

"Remember the promise you made? You said if I ever defeated you in swordsmanship, you'd grant me one wish."

KairosZeth groaned. "Ugh. Don't remind me. Who knew a mortal could be so… monstrous with a sword."

"Then grant me my wish."

KairosZeth narrowed his eyes. "What is it?"

Ren's voice turned resolute.

"I want my disciple to undergo Time Dialation Training."

The tea cup in the dragon's hand stopped mid-air. His calm expression changed for the first time. He placed the cup down and straightened, his aura rising.

BOOM.

A wave of pressure swept through the room, knocking Ezra off his cushion and collapsing him onto the ground.

"Do you know what you're asking?"

The voice was no longer relaxed. It was the voice of a being who commanded time itself.

Ren, undaunted, stood firm. His own aura clashed against the dragon's—stabilizing the room.

"Yes. I know."

KairosZeth gazed at him for a long moment. Then—he waved his hand, and the pressure vanished.

Ezra coughed and slowly sat back up. A pulse of healing mana washed over him, restoring the bruises.

"Your disciple already has a rare core," KairosZeth said.

"His mana is richer than most. And even without enhancement potions, he's at Rank 3. You suspect, don't you… that his core is beyond S-rank?"

Ren nodded. "I don't just suspect. I'm sure."

"Then why risk it? Time Dialation is… cruel. It can break a weak soul."

Ren didn't answer right away. He looked at Ezra, then back at KairosZeth.

"Because I won't be here forever. I'm heading to the frontlines. If I die—he needs to be strong enough to stand on his own."

Ezra's expression tightened. He already knows.

His master was heading into frontline.

KairosZeth studied Ren quietly. Then he looked back at Ezra.

"You don't want a student. You want a successor."

Ren didn't deny it.

The Time Dragon stood from his seat.

"Very well," he said.

"Follow me."