Onepiece: I Am Aizen, The Strongest Admiral

"Let me show you! Ninety-Nine's Hadō—one of the strongest techniques at the pinnacle of Kidō!"

Aizen's voice was calm, yet it carried an air of undeniable authority. Ninety-Nine's Final-Level Hadō—an ultimate destructive force, requiring unparalleled mastery and immense Reiatsu. Even most captains of the Gotei 13 couldn't hope to wield such a technique.

Despite his seemingly composed demeanor, Aizen could feel the strain of unleashing such power. Even with 25% of his Reiatsu unlocked, the sheer energy required to channel this technique was monumental. Yet for Aizen, this moment was about more than the destruction—it was about sending a message.

The masked CP0 operative standing before him gritted his teeth. Despite years of training and experience, the overwhelming pressure of Aizen's Reiatsu weighed heavily on him. He had anticipated resistance, but this... this was something entirely beyond his understanding.

"Is this all you've got?" Aizen mused, his gaze icy and unyielding. "Your arrogance brought you here, but it won't save you."

The operative barely had time to process Aizen's words before the sky above erupted. Five colossal dragons, shimmering with pure energy, roared into existence. The swirling Reiatsu coalesced into their massive forms, each more terrifying than the last. The very air seemed to vibrate with their power, and the ground beneath their feet cracked and splintered under the sheer weight of the energy.

The CP0 agent's composure cracked. "What... what is this?!" he stammered, his voice trembling. He tried to steady himself, activating his Armament Haki and Iron Body to bolster his defenses. Yet, even those techniques, perfected over decades, felt woefully inadequate against the force before him.

"Hadō Ninety-Nine: Five Swirling Dragons of Destruction," Aizen declared, his voice carrying the weight of inevitability.

The dragons roared as they descended upon the CP0 operative. Their speed was unmatched—blindingly fast and brutally precise. The agent attempted to dodge, but one dragon was already upon him, sinking its massive jaws into his right leg. Pain shot through him as the sound of bones snapping echoed through the battlefield.

"So fast..." the operative thought, his mind reeling. He didn't even have time to process the agony before another dragon's claw struck his side, shattering the mask that concealed his face. Blood spattered across the ground as a deep gash appeared on his cheek.

"Damn it!" he growled, gritting his teeth through the pain. "Even with Haki... even with Iron Body... I can't withstand this!"

Aizen observed the scene with cold detachment. "Even if you beg for mercy now, the Five Swirling Dragons of Destruction won't stop. Your survival depends entirely on your own strength." His words were as unforgiving as the storm of energy surrounding him.

The dragons continued their relentless assault, biting and clawing at the CP0 agent. The operative, despite his formidable training, was utterly overwhelmed. His once-pristine uniform was now tattered and soaked with blood. His right arm hung limp, nearly torn from its socket by the ferocious attacks.

The man's screams echoed through the area, only to be swallowed by the roaring of the dragons. The pain was unbearable—a torment far beyond anything he had ever endured. It wasn't long before his body could take no more, and he collapsed, unconscious.

"Tch. Boring," Aizen muttered, dismissing the dragons with a wave of his hand. The colossal beasts dissolved into particles of Reiatsu, leaving behind a devastated landscape. Buildings lay in ruins, and the ground was scorched and cracked.

At that moment, the sound of hurried footsteps reached Aizen's ears. He turned slightly, spotting Vice Admiral Tsuru and a group of Marines rushing onto the scene. Her eyes widened as she took in the destruction, and her gaze settled on the unconscious CP0 operative lying in a pool of his own blood.

"What happened here?" Tsuru asked, her voice sharp but tinged with concern.

Aizen casually leaned against a nearby wall, his hands in his pockets. "That man provoked me. I simply responded in kind. If he couldn't handle the consequences, that's not my problem."

Tsuru's brow furrowed, but she quickly hid her concern. She had known Aizen long enough to understand his methods. The CP0 operative had clearly underestimated him, and now he had paid the price.

She sighed, turning to her subordinates. "Take the CP0 operative to the medical bay. And someone report this to Marine HQ."

Her words were met with swift action, and the Marines moved to carry out her orders. Turning back to Aizen, she said, "You should be more careful, Aizen. Even if he provoked you, the World Government won't let this slide easily."

Aizen's lips curled into a faint smirk. "Let them try. I've yet to meet anyone from their ranks who can pose a real challenge."

Tsuru shook her head, exasperated. "I'll report this to the higher-ups. Just... try not to cause any more trouble today."

As she walked away, Aizen remained where he was, his expression calm and unreadable. The events of the day had only solidified his position. He wasn't just a rising star in the Marines—he was a force to be reckoned with, one that even the World Government would think twice about challenging.

For now, he would let them make their moves. After all, it was all part of his plan.