Vergil Is Back-Chapter 15 - 10: Chains of the Prison Dragon

The rooftop was silent except for the soft hum of the wind and the faint pulse of power thrumming through Leon's body.

His crimson gauntlet—Boosted Gear—crackled with unstable energy, the emerald jewel flickering.

But this time, there was another voice.

A presence darker, heavier than Ddraig's fire.

A whisper like grinding chains and smoldering hatred.

["You would dare claim me...?"]

Leon didn't flinch.

"I'm not asking for permission."

He closed his eyes—and let the system continue the fusion.

[System Alert: Initiating Vritra Fusion – Phase One]➤ Current Host Integrity: 92%➤ Risk Level: High➤ Proceeding...

Inside his soul, the Dragons clashed.

Spirit Realm – Leon's Mind

Two colossal forms stood facing each other in a void of swirling power.

One, a majestic red wyrm—Ddraig, the Red Dragon Emperor.

The other, a serpentine shadow wreathed in chains and smoke—Vritra, the Prison Dragon.

["This boy cannot wield us both!"] Vritra roared.["He will, and you will submit, or be consumed."] Ddraig replied, his voice calm but commanding.

Leon stood between them, sword in hand.

"I didn't come here to play mediator," he said. "I came to own you both."

He held up his hand—and the system pulsed.

Chains surged from the void and latched onto Vritra's form.

[Forbidden Fusion: Soul Bind Initiated]

Vritra howled in rage.

["I am the flame that curses gods—"]

Leon narrowed his eyes.

"And I am the blade that cuts destiny."

With one slash from Yamato—light met shadow.

And Vritra was absorbed.

Reality – Kuoh Church, Midnight

Leon's body convulsed briefly, the fusion wracking his soul.

But he stayed silent—fists clenched—refusing to show weakness.

[Fusion Complete – Partial Sync Achieved]

The Boosted Gear morphed.

Chains wrapped around the gauntlet like black veins. The green jewel pulsed with a faint dark purple ring beneath the emerald glow.

New functions unlocked.

[Cursed Chain – Vritra Ability: Active]➤ Allows binding of opponents with cursed energy➤ Enhances control over darkness, flame corruption, and soul suppression➤ Incompatible with Light-Based Sacred Gear users (Caution Advised)

Ddraig's voice echoed inside his mind.

["This power... you'll be hunted for it."]

Leon sat back, watching the moonlight fade behind dark clouds.

This chapt𝓮r is updat𝒆d by ƒreeωebnovel.ƈom.

"Let them come."

Elsewhere – Grigori HQ (Fallen Angel Faction)

Azazel dropped the sacred gear detector crystal in his hand.

"...What in the actual hell?"

The readings were off the charts.

"Two dragons... in one body?"

Shemhazai appeared beside him, looking grim.

"Ddraig and Vritra. That's impossible."

Azazel narrowed his eyes.

"No. That's Leon. He's made the impossible his playground."

"...We'll need to meet him soon."

Back at Kuoh Academy – The Next Day

Leon entered class like usual—silent, unbothered. But there was a noticeable tension in the air.

Whispers.

Even students with no powers felt it—his presence.

Asia clung to his side more than usual, worried.

"Are you okay?" she whispered. "You look... tired."

Leon gave her a rare, softer glance. "Just dreaming of dragons."

Raynare smirked from the back corner. "So dramatic, Master."

But she could feel it too—something in Leon had changed.

The air around him was heavier.

Darker.

More dangerous.

Student Council Room – Sona Sitri's POV

Sona adjusted her glasses, watching the security feed.

"He's evolving," she said quietly. "Even Rias can't control him."

Tsubaki looked uneasy. "What is he?"

Sona didn't answer.

She didn't know.

Final Scene – Occult Research Club Room

Rias sat alone, holding a document sent from the Underworld.

It was stamped with the crest of the House of Glasya-Labolas.

The holders of the original Vritra fragments.

"...They've noticed," she whispered.

Akeno leaned on the wall. "They'll want answers."

"They'll want Leon."

And deep down... Rias didn't know if even she could protect him anymore.