One Piece: The Straw Hat Pirates' Max-Level Swordsman

Hancock used "Conqueror's Haki: Dream Field", and the powerful Haki spread out from her, knocking some weaker enemies unconscious instantly. Kuina cooperated with the Nine Snakes warriors, using her agile body movements to dodge attacks and look for opportunities to counterattack.

Zoro found an opportunity in the battle. He rushed towards an enemy who was casting powerful magic: "Three Swords Style? Secret? One? Three Thousand? Great Thousand Worlds? Dance!" His sword light swept towards the enemy like a tornado and directly cut the enemy off the back of the seahorse.

Luffy activated the "Snake Man" form of Gear Fourth and quickly shuttled between the enemy and Kaiba, "Rubber rubber? White snake? Phantom combo!" His arms attacked as quickly as a white snake, knocking the enemies off Kaiba's back one by one.

After a fierce battle, they finally defeated the enemies. The defeated enemies and the seahorses disappeared into the wall of light, as if they had never appeared.

"Who are these guys? Why are they attacking us?" Luffy sat on the ground, gasping for breath.

Ling Tian looked at the light wall and said thoughtfully: "Maybe they are the guardians of this special space and they think we are invaders. However, this also means that there may be something important hidden here that they don't want outsiders to find."

After a short rest, they continued to explore this mysterious space. Following the colorful sky and fluorescent sea water, they found an island suspended in the air. The island was shrouded in a soft light, and there were many strange buildings on the island. These buildings were shaped like huge shells and corals, exuding a mysterious atmosphere.

"Let's go up and take a look." Luffy said, grabbing a vine hanging from the island and began to climb. The others followed him and climbed towards the island.

When they landed on the island, they found many strange devices and mechanisms on it. There were some glittering runes on the ground, and when they accidentally stepped on these runes, some small energy attacks would appear around them.

"Everyone, be careful with your feet. There are traps everywhere here." Kuina warned.

They walked carefully on the island, trying to find the rules of these organs. During the exploration, they found a huge palace with a closed door and various mysterious patterns and words engraved on it.

"There must be something important in here." Luffy looked at the palace door and tried to push it open.

But no matter how hard they tried, the gate didn't budge. Zoro carefully observed the patterns on the gate and said, "These patterns seem to be a kind of puzzle. We need to solve the puzzle to open the gate."

Everyone began to study the patterns on the gate, and after some effort, they found that these patterns were related to constellations and elements. According to the hints of the patterns, they needed to activate the corresponding element runes in a specific constellation order.

"I know!" Ling Tian said excitedly, "First find the fire element rune representing Aries, then the earth element rune representing Taurus..."

Following Ling Tian's instructions, they activated the runes one by one. As the last rune was activated, the palace gate slowly opened, and a powerful energy rushed towards them.

Entering the palace, they saw a huge crystal ball, in which there seemed to be some images flowing. These images showed some scenes of ancient civilization, including grand sacrificial ceremonies, mysterious building construction processes, and a scene of a mysterious power being sealed.

"This is..." Luffy looked at the image in the crystal ball in surprise.

Kuina pointed at the sealed power in the image and said, "Look, could this be the power of traveling through time and space that we mentioned earlier?"

Just as they were observing the crystal ball carefully, a sinister laugh suddenly came from the depths of the palace: "You stupid guys actually delivered yourself to our door."

Everyone immediately became alert, and saw a man in a black robe, his face shrouded in shadows, slowly walking out. He held a wand inlaid with black gemstones in his hand, and exuded a strong dark aura.

"It's the man in black robe again!" Zoro gripped his knife tightly and his eyes became sharp.

The man in black robe sneered: "You have ruined our plan. Today is the day you die." As he said that, he raised his wand and began to cast magic.

Dark power surged out of the wand, transforming into black vines that entangled everyone. Luffy activated Gear 3 and punched the black vines: "Rubber rubber? Giant fist!" His huge fist broke some of the vines apart, but more vines continued to surge towards them.

Zoro used the "Three Swords Style, Black Rope, Big Tornado" technique. His three swords spun, forming a black tornado that cut the approaching vines into pieces. Kuina and the Nine Snakes used their agility to dodge the vines' attacks and looked for opportunities to counterattack.

Hancock cast "Sweet Sweet Wind? Charming Shadow", and the pink light shot towards the black-robed man, trying to confuse him. But the black-robed man seemed to have a certain resistance to Hancock's ability. He just shook slightly and then continued to cast magic.

"You can't escape. This will be your burial place." The man in black robe laughed arrogantly.

While dodging the vines' attacks, Ling Tian observed the black-robed man's magic: "His magic power comes from that wand and the dark gem on his body. We have to find a way to destroy them."

Luffy heard this and rushed towards the black-robed man: "Rubber rubber? Shoot like a gun!" His arms attacked the black-robed man like raindrops, trying to interrupt his spell. Zoro and Kuina also cooperated with Luffy and attacked the black-robed man.

Under the combined attack of everyone, the man in black robe gradually couldn't resist anymore. He increased the output of magic, and the whole palace began to shake violently.

"Oh no, he wants to destroy this place!" Ling Tian shouted.

They knew they couldn't let the black-robed man succeed, so they attacked even harder. Luffy activated the "Tank Man" form of Gear 4 and rolled towards the black-robed man, knocking him against the wall of the palace. Zoro took the opportunity to chop at the black-robed man's magic wand: "Three Swords Style? Secret Technique? Three Thousand Worlds? Demon Breaker!" His sword slashed at the magic wand, emitting a strong light.

A crack appeared on the black-robed man's wand, and his face turned very ugly. "You..." Before he could finish his words, Kuina and the Nine Snake Warriors attacked. Kuina used "Tianyuan Sword Technique? Chaos Break", her sword pierced the black-robed man's body, and the Nine Snake Warriors' bows and arrows also shot him.

After being injured, the black-robed man tried to escape, but Hancock trapped him with "Sweet Sweet Sweet Wind? Sweet Prison", and Luffy took the opportunity to punch the black-robed man in the face, knocking him to the ground.

"Tell me, what is your conspiracy here?" Luffy grabbed the black-robed man's collar and asked loudly.

The man in black robe coughed up a mouthful of blood and said viciously: "Humph, do you think defeating me will help? Our organization is about to find a way to travel through time and space, and you can't stop us."

Ling Tian frowned: "Why are you looking for the power to travel through time and space? This will bring disaster to the world."

The black-robed man sneered, "Disaster? We will use this power to rewrite history and make the world ours."

Zoro kicked the man in black robe and said, "You guys are really crazy."

While they were interrogating the black-robed man, the image in the crystal ball suddenly changed. Some new images appeared in the image, showing the location of the key clue to the power of time and space travel - a mysterious island hidden in the cracks of time and space.