Third POV

The air crackled with tension.

Jiraiya clenched his fists, already preparing a counterattack, but Kanna-she didn't move.

Didn't flinch.

Didn't blink.

Despite the deep wounds in her body, despite the pain searing through her veins, her gaze never wavered from Muzan's form. Muzan narrowed his eyes. "What's this?"

Kanna's breathing was slow, deliberate. The bloodlust in the air was thick, suffocating-but she wasn't afraid.

She was awakening a new surge of power that she never ever used much often.

Then- A surge of energy erupted from her.

Jiraiya's eyes widened as a shockwave pulsed through the chamber, cracking the very ground beneath them. Stone walls crumbled, dust and debris flying through the air.

Muzan raised a brow, intrigued. "Oh?" Kanna slowly lifted her head. Her eyes- Her right eye blazed white.

The Byakugan had activated. Veins pulsed along her temple, the sheer clarity of her vision piercing through the battlefield.

Her left eye, however- A black-and-red kaleidoscope of death. Mangekyō Sharingan.

Jiraiya stumbled back, his heart hammering in his chest. 'No way... She has-?!' Muzan's smirk faltered for the first time.

Kanna's voice was deathly quiet. "Die." Then- She moved, faster than before. Faster than even Muzan.

BOOM!

Muzan barely had time to react before Kanna appeared in front of him, her hand ripping through his chest like he was made of paper.

His eyes widened in shock.

He hadn't seen her move. Not even with his own enhanced perception.

Jiraiya could barely process what had happened. 'She's too fast-!' Muzan, however, merely grinned.

"You think that's enough to kill me?" His wound regenerated instantly, and in the blink of an eye, his claws lashed out-

Only for them to phase through Kanna's body like an illusion. His smirk vanished.

"What-?!"

Kanna stared at him, her Mangekyō spinning.

A terrible pressure filled the chamber, suffocating, overwhelming.

Jiraiya shivered. 'Genjutsu? No... this is something else.' Muzan staggered back, gripping his head as his vision distorted.

He was- He was somewhere else, a vast, empty void. The air was cold. Silent.

And in front of him stood Kanna. But not just one.

Hundreds. Thousands.

A never-ending army of Kanna, all staring at him with those same crimson eyes.

Muzan's chest tightened. His breath came short. He- He couldn't move.

He couldn't breathe.

This wasn't just a simple illusion.

This was- Tsukuyomi.

Kanna stepped forward, her voice echoing through the endless void.

"You are in my world now, Muzan."

Muzan gritted his teeth, trying to break free, but the pressure-it was too much.

Too real.

Too overwhelming.

Then- Kanna raised her hand. And in an instant- Thousands of blades pierced through Muzan's body.

Muzan screamed in agony, since the blades were no ordinary, Jiraiya watched in shock as Muzan-the immortal Demon King himself-collapsed onto his knees, blood gushing from wounds that weren't even there.

"What the hell is this power?!" Kanna, still standing tall, exhaled sharply. Her Byakugan glowed brighter, her gaze piercing through Muzan's regenerating flesh. "You are not as immortal as you think," she murmured.

Muzan gritted his teeth, trembling. This-this wasn't possible. This wasn't supposed to be happening.

For the first time in his existence-

Muzan felt fear, so without any further notice, fled along with the others. Jiraiya immediately come to Kanna's aid when she lost her consciousness.