One Piece's Strongest Villain

"Summon Uchiha Madara immediately!"

Leon made his decision the moment the system prompt sounded, his voice steady despite the chaos around him.

In that instant, a majestic figure formed in his mind.

A man whose ambitions surpassed the heavens. A warrior who single-handedly fought the five great nations of the ninja world and dared to reshape reality itself with the Infinite Tsukuyomi.

Uchiha Madara.

The second Leon confirmed his choice, a blinding white light erupted before him, flooding the small boat in radiance.

From within the light, a towering figure emerged.

A suit of dark red armor reflected the blazing sunlight, each plate etched with the marks of countless battles. His long, jet-black hair flowed like a storm behind him, and his crimson Mangekyō Sharingan swirled with power that made the world tremble.

Madara stood motionless, radiating a supreme authority that demanded the heavens kneel.

"This world is pitifully small," Madara said, his voice calm but steeped in disdain. "There is so little land to conquer, barely enough to amuse me."

No elaborate introductions were necessary—his name alone told of his legend. Uchiha Madara.

The pinnacle of the ninja world. A name that evoked awe, fear, and respect.

"Congratulations, host. Uchiha Madara has been successfully summoned!"

"Congratulations, host, for gaining partial access to Uchiha Madara's power!"

Leon's heart raced as the system announcements echoed in his mind. He clenched his fists and felt a surge of energy course through his body—a transformation, a leap in strength unlike anything he had ever imagined.

"So I gain part of their power too…" Leon muttered, his eyes blazing with excitement. He felt as though his very being had been reforged into something greater.

Onboard the Navy Warship

A stunned silence fell across the deck as the incandescent light faded, revealing Uchiha Madara in all his glory.

"What… what just happened?" Major General Simmons froze, his cigarette trembling in his lips. His instincts screamed danger, his gut warning him of a power far beyond anything he had ever encountered.

The aura radiating from Madara was suffocating. It pressed down on Simmons and his men like an invisible hand squeezing the air from their lungs.

"Gurgle…"

Navy soldiers swallowed hard, their fingers trembling as they gripped their muskets. Even hardened veterans, accustomed to the horrors of war, found themselves paralyzed by the overwhelming presence of the man before them.

"Major General Simmons," Colonel Rex stammered, his voice trembling with fear. "What… what should we do?!"

Simmons gritted his teeth, shaking off his fear through sheer willpower. "Don't panic!" he barked, rallying his men. "No matter who he is, open fire! Kill him immediately!"

Bang! Bang! Bang!

Hundreds of muskets roared in unison, their muzzles erupting in flame. Bullets tore through the air in a deadly storm, all aimed at Madara and Leon.

Opposite the Warship

As the muskets fired, Madara turned to Leon, his piercing gaze fixed on the boy.

"You summoned me. This is not the ninja world," Madara observed, his deep voice carrying a weight that seemed to anchor the very air around him.

"That's right," Leon replied, meeting Madara's gaze. "My name is Leon, and I summoned you to this world."

Madara's expression remained inscrutable, though his crimson eyes flickered with intrigue. "Summoned… This must be a new world." His voice was low, his aura vibrating with restrained power.

"System," Leon asked cautiously in his mind, his nerves taut, "I can summon characters like Madara, but… do I have absolute authority over them?"

["Yes. Summoned characters retain their personalities, but the host has absolute command."]

Hearing this, Leon felt a wave of relief wash over him. His gamble had paid off—Madara wasn't just an unstoppable force. He was an ally.

But there was no time to dwell. The navy's bullets were closing in fast, their gleaming tips growing larger in Leon's field of vision.

"Madara," Leon said sharply, pointing to the warship. "We'll talk later. Take care of them first!"

Madara glanced at the approaching bullets and frowned. "Who are these fools?"

"They call themselves the navy," Leon replied simply. "They believe they protect justice."

"Justice?" Madara's lips twisted into a sneer. "How laughable."

The act of firing upon him without hesitation had ignited his fury. As a man who once stood at the pinnacle of the ninja world, he would not suffer such insolence.

"As ants, they dare call themselves the defenders of justice? Let me show them the true meaning of power."

Madara raised his hand, his voice a low growl that carried the promise of destruction.

"Fire Style: Majestic Destroyer Flame."

A deafening roar tore through the air as a raging inferno erupted from Madara's mouth.

The flames surged forward in a massive tidal wave of heat, engulfing everything in their path. The sea hissed and steamed as the water evaporated, the air itself trembling under the oppressive heat.

The sky turned blood-red as the inferno swallowed the horizon, its light casting eerie shadows across the terrified faces of the navy soldiers.

On the Warship

The soldiers barely had time to react before the sea of flames hit them.

"WHAT IS THIS?!"

The inferno slammed into the warship with catastrophic force, the wood igniting instantly. The heat was so intense that metal fixtures began to warp and melt. Screams of terror echoed as the navy realized they were utterly outmatched.

Simmons stared, his cigar dropping from his lips as he watched the destruction unfold. The flames roared louder than any cannon, and in that moment, he knew—this was no ordinary foe.

Opposite the Warship

Madara stood unmoving, the remnants of the flames dancing around him. His Sharingan glowed like molten rubies, reflecting the destruction he had wrought.

"Pitiful," Madara muttered, crossing his arms. "If this is the best this world has to offer, it will be far easier to conquer than I thought."

Leon couldn't help but grin. With Madara by his side, the possibilities were limitless.

"Let's move," Leon said, stepping forward confidently. "This is just the beginning."