Uchiha Puppet Master, Starting from One Piece

Rangiku abandoned her usual languidness, her brows furrowing slightly, her eyes showing a hint of seriousness: "This Upside-Down Mountain truly lives up to its reputation."

"Bai Yu, Bai Yu, I'll fly everyone over there..."

Bai Yu didn't speak, but gazed at the surging currents and majestic peaks of Upside Down Mountain: "Kanna, we're at sea. Trust our ship, it can handle it."

Taking a deep breath, Bai Yu gripped the control stick tightly. He turned to look at the crowd, a determined smile playing on his lips: "The Grand Line is never easily reached. Since we've chosen this path, there's nothing to fear."

As he spoke, he looked at the puppets controlling the sails and the ship's helm: "Everyone, hold on tight, let's charge forward!"

As soon as the words were spoken, the puppets instantly took on their respective roles. Some tightened the sails, and under the puppets' precise control, the boat, like a nimble fish, braved the raging sea wind and surging waves, heading headlong into the current of Upside-Down Mountain.

As soon as they entered the current, the ship was swept upwards by a tremendous force at an astonishing speed. The crew could only hear the wind howling in their ears and the deafening sound of the waves crashing against the hull. The ship rocked more and more violently, as if it would be torn apart by the current at any moment.

Kanna clung tightly to Retsu Unohana's arm, Rangiku abandoned all her nonchalance, gripping the railing tightly with both hands, her golden hair disheveled by the wind, yet she still stared intently at the mountain path ahead; Robin leaned against the ship's railing, her hands gripping the handrail tightly.

Waves kept crashing in from both sides, hitting the deck and splashing up a cloud of water that soaked everyone's clothes, with cold seawater dripping down their hair.

Robin kept a close eye on the ever-changing currents and reefs ahead, using his exceptional reaction speed to report the situation to Bai Yu.

The puppet's precise sail control and the finances' steering skillfully steered the ship, repeatedly avoiding fatal dangers. Facing the ever-protruding giant rocks, they sometimes adjusted their course, weaving through the gaps in the ocean currents, and sometimes withstood the impact of giant waves to stabilize the hull.

The ship climbed higher and higher in the ocean current, getting closer and closer to the mountaintop, while the current grew increasingly turbulent, as if it would swallow everything up.

Just then, an even larger wave crashed down from the front, like a wall of water, with a destructive force, crushing towards the ship.

"Watch out!" Rangiku shouted.

Bai Yu's eyes narrowed, and without the slightest hesitation, he immediately ordered all the puppets to do their best to protect the unfurled sails. At the same time, he manipulated the rudder to tilt the ship slightly, allowing it to glide along the edge of the giant waves.

Giant waves crashed against the side of the ship, causing it to rock violently. The tables and chairs on the deck were overturned, and the puppets, under his control, did their best to stabilize the ship. The sails hummed slightly due to excessive tension.

Clinging tightly to everything around them amidst the turbulence, their bodies rocking violently with the ship, finally, after countless jolts and dangers, the ship, propelled by immense inertia, surged to the summit of Upside-Down Mountain! From the top, overlooking the surging currents and the vast ocean below, an unprecedented sense of accomplishment welled up within them.

However, the journey was not over.

The ship had just stabilized in the confluence channel at the top of Upside Down Mountain when it was suddenly grabbed by an even more powerful downward current. The force seemed to be even faster and more tyrannical than when it was rising, as if an invisible giant hand was throwing the entire ship down into the sea below.

Bai Yu's hands were firmly on the rudder, each turn precise to the millimeter. The puppets were rolling up the sails, leaving only a narrow sail to control the direction with the wind. The metal pulleys made a sharp creaking sound due to the high speed of rotation, which, mixed with the roar of the waves, exploded in the mountains with a deafening sound.

The ship plunged downwards at a near-vertical angle, the deck becoming a sloping wave channel. Cold seawater poured in from the bow, forming a rapid current on the deck, and gushing down to the bottom of the ship through the gaps.

Kanna nestled close to Retsu Unohana, her round eyes wide open; the feeling was simply wonderful for her.

Unohana held her protectively in her arms, remaining incredibly steady.

Rangiku's golden hair was torn and whipped about by the gale, a few strands clinging to her sea-drenched cheeks: "Turbulence on the left, Shiraha!"

Before the words were even finished, a swirling whirlpool crashed into the left side of the ship. The puppets immediately exerted all their strength to control the sails, while Bai Yu swung the rudder sharply to the right. The ship slid past the edge of the whirlpool, and the hull crashed against the water, creating a shower of white, shattered waves that splashed all of them with a chill.

Robin leaned against the railing at the stern, her wet hair plastered to her neck, outlining its slender lines. Her gaze remained calm; she even raised a hand to brush aside the strands of hair obscuring her eyes. Her eyes swept across the ever-changing currents and reefs ahead, and she reported to Bai Yu in rapid succession: "The channel narrows thirty meters ahead, there are falling rocks on the right-hand cliff, and the current has increased by another thirty percent!"

Her abilities quietly unfolded, and several pitch-black arms emerged from both sides of the ship, using the reaction force to stabilize the ship and allow Bai Yu to more easily control the rudder. The pitch-black arms made a piercing sound as they rubbed against the rocks, but they managed to stabilize the rocking ship for a moment.

This is Nico Robin who has already mastered Armament Haki.

Robin with Armament Haki is incredibly powerful...

The speed of the dive increased, and the sound of the wind in our ears became a howling thunder. The mountains of the red earth continent rushed past on both sides, and the water mist was so thick that it was like an impenetrable cloud. It condensed into tiny water droplets on our eyelashes, making our vision blurry.

Just as the ship was about to break through the waterway of the Red Earth Continent and rush towards the vast sea below, a deafening roar suddenly came from the sea to the left. The roar was deep and heavy, as if it surged up from the deepest part of the sea, making the ship hum and tremble. Even the ocean currents seemed to be briefly disturbed by the roar.

Bai Yu suddenly looked up and, through the misty water, saw a colossal figure blotting out the sky on the sea ahead, crashing repeatedly against the rocky walls of the Red Line. It was a whale, its size comparable to several giant pirate ships. Its black skin gleamed wetly in the mist, and its broad tail fin slapped the surface of the sea, creating waves tens of meters high. Its head slammed heavily against the hard rock walls of the Red Line, producing dull, resounding "thud—thud—". With each impact, pebbles tumbled off the rock walls and plunged into the sea, splashing up huge sprays of water. The whale's forehead was already covered with wounds of varying depths, yet it continued to crash tirelessly, as if stubbornly waiting for something.

This is a huge whale that seems to understand human nature.