Uchiha Puppet Master, Starting from One Piece

Five hundred years of peaceful life, day after day of healing and saving lives, had long since made her forget the joy of wielding a knife. Now it seems there is a place where she can use her medical skills and also wield a knife.

Standing on this unfamiliar sea, looking at these unfamiliar yet friendly faces, she suddenly felt that perhaps this summons was not a bad thing after all.

"Alright."

She said softly, "Then I'll have to trouble you all to guide me from now on."

Bai Yu watched this scene unfold, his smile growing even wider.

He could feel that the aura emanating from Retsu Unohana was slowly merging with the aura of the sea, and the progress bar of his cheat system had jumped up significantly, almost filling up completely.

The day after Retsu Unohana joined the Dawn, the horizon had just parted to reveal a sliver of dawn, and a cool sea breeze carrying a salty, fishy smell swept across the deck, while the morning dew on the ship's side still held the lingering chill.

"White Feather-kun."

Retsu Unohana's voice was light and calm. She had changed out of the slightly wrinkled captain's haori she wore the night before.

She wore a clean black robe over her plain white kimono, her black hair was loosely tied up in front of her chest, with a few strands falling beside her cheeks, and she held the Zanpakuto in her hand, which she had not yet drawn.

At this moment, Uchiha Hakuba was leaning against the mast, wiping his Kusanagi sword, the blade gleaming silver like frost.

Hearing the sound, he looked up and saw Retsu Unohana standing at the stern of the ship, her gaze fixed on the sword in his hand, a faint smile on her lips.

"Captain Unohana".

Bai Yu put away the cloth, then lightly flicked the hilt of the Kusanagi sword with his fingertip, producing a clear and melodious ringing sound.

"So early, is there something you need?"

"I have nothing to do."

Unohana Retsu walked slowly closer, her footsteps so light they seemed to be treading on clouds, making no sound at all.

"I heard from Rangiku that Shiraha-kun's swordsmanship is extraordinary, and that he has even sparred with the top swordsmen of the Grand Line, so I thought I'd like to learn a thing or two from him."

She paused, her gaze sweeping over a solitary island rising from the distant horizon: "Perfect, that deserted island ahead is undisturbed. Why don't we go there and have a proper spar?"

Bai Yu's pupils contracted slightly. Good heavens, the thousand-year-old Kenpachi is going to bully a child.

"Captain Unohana, I actually thought you could hold out for a few more days, but I didn't expect you to give up on the second day?"

Then, a fierce smile appeared on his lips, and his Sharingan swirled in his eyes, a flash of crimson light disappearing in an instant: "Although I'd love to have this, I must first explain, Captain Unohana, due to the limitations of your physical body, your strength has not yet reached its peak. You still need a long time to hone your new body."

"no problem."

Feeling her body grow weak, Retsu Unohana chuckled softly: "From now on, you can call me Unohana, or Yachiru... or even Retsu-nee!"

It's a monster... starting to act young...

The Dawn's anchor quickly sank into the shallows near the island's shore, the ship rocked gently, and then came to a steady stop. Robin stood on the deck, holding Connor who was still yawning, while Rangiku leaned against the gunwale, holding a jar of sake in her hand, her eyes fixed intently on the two who were about to land on the island.

"Bai Yu has been really into fighting these past few days."

Rangiku clicked her tongue, her eyes brimming with excitement: "Captain Unohana, I wonder how long Shiraha can hold out."

Robin gently patted Connor's back, her gaze calmly fixed on Retsu Unohana's retreating figure: "Shiraha's swordsmanship, combined with the Sharingan's insight, is incredibly powerful, but..."

Her voice lowered slightly: "I heard from Shiraha that Captain Unohana's swordsmanship is the best in Soul Society. It's hard to imagine how gentle Unohana-senpai would wield a sword."

On the deserted island, vegetation grows luxuriantly, and strange rocks abound.

Shiraha and Muno Hana Retsu stood facing each other, about ten steps apart.

The sea breeze ruffled the hem of his white robes. He held the Kusanagi sword, its tip pointing diagonally at the ground. His Sharingan was fully activated, the three tomoe spinning rapidly, capturing every subtle movement of Retsu Unohana. Her breathing rate, the way she held the sword, even the arc of her flowing robes were clearly captured and analyzed.

This is definitely a great learning opportunity; the Sharingan will allow him to learn a lot.

"Baiyu-kun, please."

Retsu Unohana nodded slightly, her tone still gentle, but the hand gripping her Zanpakuto suddenly tightened.

Before he finished speaking, Bai Yu's figure darted out like a gust of wind!

He didn't use any fancy moves, but directly unleashed the starting stance of the Uchiha-ryu swordsmanship. The blade of the Kusanagi sword sliced ​​through the air with a piercing whistle, and the tip of the sword, leaving a trail of afterimages, stabbed straight at Unohana Retsu with astonishing speed.

However, in the face of this sword, Retsu Unohana simply turned slightly to the side.

Her movements were incredibly slow, like she was dancing an elegant waltz. Even though Bai Yu's sword tip was already within reach, it missed by just a fraction of a second, grazing her temple and lifting a strand of black hair.

"Such a fast sword."

Unohana Retsu's voice was devoid of warmth; with a slight twist of her wrist, her Zanpakuto was finally drawn.

There was no earth-shattering sound, only a soft clang, as faint as the trembling of a cicada's wing.

The blade flashed like snow, as thin as moonlight, yet it possessed an overwhelming and irresistible sharpness.

Bai Yu's pupils contracted sharply, and the tomoe of his Sharingan spun even faster. He immediately sheathed his sword and went back to defense, holding the Kusanagi sword upright in front of him.

"The swallows return."

The sword traced three arcs, yet precisely struck Unohana Retsu's blade.

"Clang! Clang! Clang!"

Three crisp impacts rang out in succession, sparks flying everywhere.

Bai Yu felt a tremendous force coming from the sword, which made his tiger's mouth numb and his arm slightly sore.

He was startled. Unohana Retsu's power seemed gentle, but it was actually dense and long-lasting, like waves, one after another, with great staying power.

He used the momentum to drift back several steps, his toes touching the ground, and his body sprang forward again, the sword's momentum suddenly changing.

The sword, carrying immense force, cleaved towards Unohana Retsu's shoulder.

This sword strike is powerful enough to cleave steel and cleave boulders!

A glint flashed in Retsu Unohana's eyes as she flipped her wrist.

The crisp sound of metal clashing against metal caused the surrounding vegetation to rustle and fall. Bai Yu's slash was actually deflected by Unohana Retsu's nonchalant attack, with the remaining force hitting the rocks at her feet, sending pebbles flying and creating a half-foot-deep crater.

"The force was strong enough, but the recovery was too abrupt, and the opening in the wrist was too obvious."

Unohana Retsu's voice remained gentle, but the hand holding the sword suddenly twisted using the recoil from the parry. The blade of the Zanpakuto slid along the blade of the Kusanagi sword, producing a series of ear-piercing metallic scraping sounds. The cold blade light bypassed Shiraha's defense and went straight for the skin on the side of his neck.

Bai Yu's pupils contracted sharply, and the tomoe of his Sharingan almost solidified into a crimson mass. He subconsciously withdrew his hand, the blade grazing his hand and leaving a shallow bloodstain. Warm blood beads seeped out, and when blown by the sea breeze, they felt icy cold.

Using the strength of his waist and abdomen, he twisted his body forcefully, stomped his right foot heavily on the ground, and retreated rapidly backward. The Kusanagi sword was held horizontally in front of his chest, and his breathing became somewhat disordered for the first time.

In terms of lightsaber skills, Unohana is far superior to Hawkeye.