One Piece: The system is only activated after leaving the Navy.

After Yamato and Tiger walked further and further away, Luo Tian appeared silently in front of the dungeon like a ghost.

With a flash, he rushed towards the guards like lightning, and with a swift movement, several heads flew high into the air, blood splattering everywhere.

Immediately afterwards, Luo Tian swiftly pulled a bunch of keys from the waist of a dead guard and inserted them into the lock of the dungeon door without hesitation. With a crisp "click," the heavy cell door slowly opened.

Upon entering the dungeon, what Luo Tian saw before him caused him to frown deeply.

Inside the dungeon, there were slaves everywhere, wounded and on the verge of death.

Some of them were covered in whip marks, some were missing limbs, and each of them suffered different kinds of pain, but without exception they were all tightly bound by thick chains and trapped in small, dark cells.

When Luo Tian entered the dungeon, all the slaves turned their gazes to him.

At first, their eyes were full of vigilance, but soon they were surprised to find that the newcomers were neither those vicious guards nor the hateful Celestial Dragons.

At this moment, Luo Tian looked around and then raised his arms and shouted:

"I was sent by Tiger to save you!"

The shout was like a thunderclap, exploding throughout the dungeon.

Upon hearing this, everyone was taken aback at first, and then their faces lit up with ecstatic joy.

Because they all knew what the name Tiger meant, and when they heard that Tiger had sent people to rescue them, a flame of hope was ignited in their hearts.

Seeing this, Luo Tian thought to himself: It seems that before he escaped, Tiger had already sown the seeds of longing for freedom and the desire to escape among these slaves.

That's why Luo Tian called out Tiger's name first, and that's why these people believed him so easily and were willing to follow him.

Thinking of this, Luo Tian forcefully threw the key in his hand towards the slaves and shouted:

"Besides this place, where else are slaves being held?"

Before the words were finished, a tall merman slave suddenly stepped out from the crowd and shouted in response:

"Brother, I know other places where slaves are held. I'll show you the way!"

Luo Tian nodded slightly in approval.

Then, he raised his voice again and shouted:

"Rest assured, everyone, I've taken care of all the guards at the dungeon entrance. Furthermore, Tiger left a ship at the entrance to Mary Geoise; just head in that direction. I still need to rescue more of our people; the more of us there are, the greater our chances of escape!"

After saying that, Luo Tian turned around and followed the fishman slave who had volunteered, hurrying towards the unknown place of imprisonment.

Luo Tian emerged from the dungeon, breathing in the fresh air, but the sight before him made his eyes widen in astonishment.

Mary Geoise was now engulfed in flames, with fire reaching the sky and thick smoke billowing out.

The streets were filled with fleeing slaves, their screams and shouts echoing in terror.

Some slaves bravely took up arms and engaged in fierce battles with the vicious guards.

Luo Tian was secretly delighted:

"It seems Yamato and Tiger acted swiftly enough!"

Without hesitation, he followed the fishman and hurried toward another place where slaves were imprisoned.

As they stepped into the dark and damp cell, Luo Tian immediately spotted several familiar figures—the three Hancock sisters who had been captured and enslaved in the original story.

Luo Tian strode forward, forming a blade with one hand, covered in Armament Haki, and instantly cleaved open their cell door.

Then, with a forceful pull, he snapped the heavy chains binding their hands and feet.

After doing all this, Luo Tian extended his large, warm hands to them and said with a smile:

"Come on, I'll take you away from this terrible place!"

As Luo Tian's towering figure grew larger in the eyes of the three Hancock sisters, it seemed like an indestructible mountain.

Hancock gazed at the man who had come to their rescue from hell, her pretty face instantly turning crimson. She lowered her head shyly and whispered:

"Thank you……"

Immediately, she reached out and tightly grasped Luo Tian's hand.

The other two sisters followed suit, running away with Luo Tian.

However, just as they escaped the dungeon, a figure suddenly appeared on a rooftop not far ahead.

Luo Tian looked closely and saw that the person was wearing a white cloak symbolizing justice and black sunglasses. It was none other than Kizaru, who was known in the Navy as the user of the "Glint-Glint Fruit"!

Luo Tian's gaze sharpened, and he decisively unleashed his spatial abilities.

With a flash of light, the three Hancock sisters vanished from their spot and reappeared steadily on his ship the next moment.

At this moment, Luo Tian took a deep breath, preparing to stop the powerful Kizaru alone.

Kizaru was completely unaware of Luo Tian's approach, as he was concentrating on preparing to unleash his power. With a wave of his hands, countless rays of light flashed, clearly indicating that he intended to use the incredibly powerful Yasakani no Magatama.

Just then, Luo Tian appeared in front of Kizaru like a ghost.

"Hey!"

Luo Tian greeted Kizaru with a smile.

Kizaru was startled, a look of surprise appearing on his face:

"Oh my, it's you, Luo Tian? I never expected you, a naval traitor, to show up in this operation. It's quite a surprise. Looks like we need to notify Naval Headquarters to send reinforcements right away!"

Luo Tian snorted coldly and replied:

"Then let's see if you can hold out until then!"

Before he finished speaking, a powerful aura erupted from his entire body, and black Armament Haki quickly covered his body, like an incomparably hard armor.

Immediately afterward, he moved swiftly and charged towards Kizaru.

Kizaru had no time to react. He only saw a black shadow flash before his eyes, followed by a sharp pain. He was shot like a cannonball into a building not far away.

boom!

With a loud bang, the building collapsed instantly, turning into ruins.

A moment later, a figure slowly rose from the ruins; it was Kizaru, his face covered in dust.

He brushed the dust off his clothes and said through gritted teeth:

"Good lad, your strength has improved! But treating a senior like this is hardly polite!"

As he spoke, a cold glint flashed in Kizaru's eyes, and he suddenly activated his Devil Fruit ability.

In an instant, a dazzling yellow flash appeared beside Luo Tian like lightning.

"Have you ever been kicked at the speed of light, kid?"

Kizaru sneered, and at the same time raised his leg and kicked Luo Tian hard.

This kick was incredibly fast, leaving a trail of afterimages, as if it could tear the air apart.

"Oh, so can you outrun time?"

Luo Tian's lips curled up slightly, revealing a contemptuous smile.

Before he finished speaking, he instantly unleashed a powerful force, and a mysterious and vast energy surged from his body, instantly enveloping the surroundings.

Time seemed to stand still, and everything remained motionless.

Luo Tian flashed and appeared in front of Kizaru like a ghost, clenching his fist and smashing it down on Kizaru with the force of a thunderbolt.

boom!

With a loud bang, Luo Tian's punch landed squarely on Kizaru.

Immediately afterwards, Luo Tian quickly lifted the time stop, and everything around him returned to normal.

However, Kizaru had already suffered a severe injury and was sent flying like a cannonball, crashing heavily into a pile of ruins.

Kizaru struggled to get up, but kept spitting out blood and his body trembled violently.

He stared at Luo Tian in shock, and said in a hoarse voice:

"You... you actually possess the power of the Time Fruit?"

Luo Tian snorted coldly, a hint of disdain flashing in his eyes, and said arrogantly:

"My fruit is far superior to that so-called Time Fruit!"

As he spoke, his body shimmered with light, his muscles bulged, and his bones cracked. In the next second, he transformed into a half-human, half-dragon form.

When Kizaru saw this, his eyes widened in shock, and he was filled with horror.

Before he could even react, Luo Tian had already rushed in front of him and delivered a powerful kick.

With a crisp crack, Kizaru's sternum broke, and he immediately lost consciousness.

Looking down at the unconscious Kizaru lying on the ground, Luo Tian turned and left without looking back, continuing to rush towards the direction of rescuing the slaves.

Luo Tian knew very well that he had a limited number of uses for his time-manipulation ability, and if the enemy discovered this weakness and exploited it, the consequences would be unimaginable.

Therefore, he must act swiftly and decisively, giving Kizaru no chance to catch his breath or retaliate.