Naruto: Rebirth of the Supreme Demon.

[System Notification]

Main Quest: "Hunt the Night Reaper" – Progress Updated

• Objective: Uncover the truth behind your reincarnation.

• Bonus Objective: Survive the Night Reaper's next attack.

• Rewards: 5,000 XP, Evolution of Destruction Magic, Special Title Unlock.

Hidden Quest Active: "The Catalyst of Chaos"

• Objective: Discover the connection between your soul and the Night Reaper.

• Bonus Objective: Unlock a fragment of your true power.

• Rewards: 10,000 XP, Title: "Catalyst of Chaos," Unknown Power Awakening.

Gremory Mansion – Training Grounds

The aftermath of the ambush at the Bael stronghold left Naruto with more questions than answers. The revelation that his reincarnation was tied to something ancient—and dangerous—weighed heavily on his mind.

To clear his head, he found himself in the Gremory training grounds, shirtless, his body covered in faint scars and glowing with residual magic. The air was thick with demonic energy, his aura unstable, flickering between crimson and dark violet.

"What am I really?" he thought, summoning his Demonic Compression Blade, watching as the energy fluctuated wildly.

His system interface glitched briefly—an anomaly he'd never seen before.

[System Warning!]

Power Surge Detected: Unstable Catalyst Energy Identified.

• Recommendation: Stabilize or risk a destructive outburst.

"Tch. I don't need the system to tell me that."

He closed his eyes, trying to focus, but the chaotic energy within him felt like a raging storm—one that wasn't entirely his own.

Then, a voice broke through his concentration.

"You're pushing yourself too hard."

Rias Gremory stood at the edge of the training grounds, her crimson hair catching the light, her expression a mixture of concern and frustration.

Naruto let out a breath, his blade dissipating. "I don't have time to take it easy."

Rias walked closer, her arms crossed. "You're not going to unlock your power by burning yourself out."

Naruto gave her a sidelong glance. "And what do you suggest? Tea and a nap?"

Rias's eyes flashed with irritation. "No. A real fight."

[System Notification]

New Challenge: "Spar with Rias Gremory"

• Objective: Test your control over unstable magic.

• Bonus Objective: Land a critical hit without losing control.

• Rewards: 3,000 XP, Potential Power Stabilization, Relationship Growth.

Naruto smirked. "You're serious?"

Rias summoned her Power of Destruction, crimson energy swirling around her like a storm. "Dead serious."

The Fight Begins

They faced each other, the tension in the air crackling with anticipation.

Rias moved first, launching a barrage of destruction spheres, each one designed to test Naruto's reflexes.

But Naruto was faster.

"Frozen Calamity!"

A wave of ice magic surged from his hands, freezing the attacks mid-air before shattering them with a flick of his wrist.

Rias smirked. "You're holding back."

Naruto's grin grew. "So are you."

They clashed in the center of the arena, their powers colliding with explosive force. Naruto's Destruction Blade met Rias's raw energy, the impact sending shockwaves that cracked the ground beneath them.

But then—

Naruto's control slipped.

The chaotic energy within him surged, his aura flaring out of control. His eyes burned with a mix of crimson and deep violet, his magic becoming wild and unstable.

"Shit… not now!"

Rias didn't hesitate. She rushed forward, ignoring the danger, and slapped him—hard.

The impact snapped him back to reality.

"Focus!" she shouted, her eyes blazing with determination. "You're not a weapon. You're you."

Naruto's breathing slowed, the chaotic energy stabilizing slightly.

Then—

He laughed.

"Did you just slap me mid-fight?"

Rias's face flushed, but she didn't back down. "It worked, didn't it?"

Naruto's grin returned, more genuine this time. "Yeah… it did."

[Challenge Complete!]

• Objective Achieved: Regained control over unstable magic.

• Bonus Achieved: Landed a critical hit (Rias's pride).

• Rewards: +3,000 XP, Power Stabilization (Partial), Relationship Growth with Rias.

They stood there for a moment, breathing heavily, the tension between them shifting from combat to something more… personal.

Rias stepped closer. "You're more than just power, Naruto."

Naruto met her gaze, his usual cocky grin softening. "And you're more than just a pretty face, Princess."

She didn't slap him this time.

Instead, she kissed him.

It was brief but intense, a mix of frustration, relief, and something unspoken.

When they pulled back, Naruto chuckled. "Well… that's one way to stabilize my power."

Rias rolled her eyes, but she was smiling.

Before they could say more, Naruto's system chimed—but this time, the message was filled with urgency.

[System Alert!]

Emergency Event Triggered: "The Reaper's Gambit"

• Warning: Nyx's Veil has launched an attack on Kuoh Academy.

• Target Identified: Akeno Himejima.

• Objective: Reach her before it's too late.

Naruto's smile vanished.

"Rias—"

"I know."

Without another word, they both teleported, heading straight into the heart of the next battle.

To Be Continued…