One Piece: My Crew Uses Zanpakuto

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"Hey, that's enough!" Vivi finally exclaimed, unable to hold back any longer. "I'm telling you, he's not that kind of person."

She pursed her lips, scolding Robin for her extremely flirtatious words and behavior.

"But maybe Ikki would prefer to place his mark on other parts of my body?" Robin continued, undeterred. "Besides, my identity is quite sensitive, so it would be better to engrave your partner's seal somewhere more private. Don't you think so, Ikki?"

Robin glanced at Vivi, then looked at Ikki with a smile.

Since Ikki had promised to let her aboard, Robin was truly happy. With his promise to show her more poneglyphs, she couldn't help but look forward to their journey together.

"That makes sense. It should be placed somewhere less visible," Ikki nodded.

To everyone's surprise, Robin actually lowered the waistband of her skirt slightly, revealing her pale skin.

Seeing this, Ikki felt a bit embarrassed but didn't comment further. He simply placed his mark on her body.

[Ding! Congratulations to Host for gaining Nico Robin, the 4th partner. Special reward for Host: Novice Swordsman Challenge Permission.]

[Name: Nico Robin]

[Age: 28 years old]

[Weapon: None]

[Life Force: 660, level C]

[Swordsmanship Realm: None]

[Swordsmanship School: None]

[Ability: Flower-Flower Fruit]

'For C-level life force, her starting points are quite high,' Ikki thought. 'That'll save some training time.'

Ikki looked at Robin's personal attributes, then handed the Konpira sword (which contained the power of Zanpakutō Senbonzakura) to her.

"Welcome aboard, Robin. This Senbonzakura is yours to use. Its ability is somewhat similar to your Flower-Flower Fruit," he explained. "Now that we're partners, it's better not to behave like you just did. It doesn't match the mature, intellectual impression I have of you. That's something only Nami would do."

As he finished, Ikki glanced at Nami standing nearby.

"What do you mean 'only I would do'?" Nami protested. "Do I usually touch you so casually? And you even placed your partner's seal in such a place!"

Nami pouted, looking at Ikki accusingly.

"Alright, enough complaining," Ikki said, patting Nami's shoulder reassuringly. "Let's set sail first. Then we'll have a welcoming ceremony for our new crewmate."

Ikki looked at Nojiko, Vivi, and the newly joined Robin.

"Yay!" Nojiko and Vivi raised their hands in the air and gave a half-hearted cheer.

"Come on, can't you be more enthusiastic?" Ikki shook his head. This was the problem with having only female crewmates – sometimes they lacked the energy he wanted.

Nojiko and Vivi smiled and turned to prepare for the voyage.

"Ikki, where are we going next?" Robin asked.

Unlike the others, as a new crewmate, she knew nothing about their planned course.

Of course, what she really wanted to know was where they might find another poneglyph.

"First, we're heading to Jaya Island," Ikki explained. "There's a town called Mock Town where a pirate named Bellamy is staying. If Nami wants to achieve Bankai with her sword, we need the Devil Fruit in his body as a catalyst."

Now that Robin was a crewmate, Ikki didn't mind explaining that Zanpakutō needed Devil Fruits to progress.

"I see, so the sword you gave me needs Devil Fruit abilities to gain power," Robin said thoughtfully. "That's why you kept Mr. 1 and the others – for the Devil Fruit abilities in their bodies."

"By the way, Ikki, if Zanpakutō can absorb Devil Fruit power without killing people, could I contribute my Flower-Flower Fruit power to help Nami achieve Bankai? After all, it's because of me that you lost those Devil Fruit users."

After understanding Zanpakutō better, Robin felt even more apologetic and eager to make amends with Ikki and Nami.

Hearing this, Nami looked over with surprise.

"No way," she said before Ikki could speak. "It's just a Devil Fruit. Robin, you're already our crewmate. I don't want to use my friend's power to achieve Bankai with my Zanpakutō."

"Nami's right," Ikki agreed. "I don't intend to make you lose your Flower-Flower Fruit ability either. Besides, if you lost that power, how would you fulfill your promise about using your ability to give me massages?"

Ikki waved his hand dismissively.

"So Ikki was looking forward to my massages after all," Robin observed with a smile.

"A massage is just a massage," Ikki clarified. "Don't pull that sneaky move you did earlier."

"Then I'll save it for when I truly fall in love with you."

"Well... that seems fair," Ikki nodded thoughtfully.

"I said, if you two have time to flirt, how about helping us with the work?" Nami interrupted, pouting.

"Haha, looks like my senior crewmate is jealous," Robin laughed. "I'll go help with the preparations, Ikki."

Robin waved to Ikki, then quickly walked over to Nami and began following her instructions.

Ikki, having rested enough and with nothing else to do, went to help Nojiko with her tasks.

A few minutes later, the Explorer officially sailed away from the coast of Alabasta, heading toward their next destination.

Explorer, Sword Training Room.

A petite figure flew up and down in the arena, swinging a long sword in her hand.

Every slash she made was as elegant and soft as flower petals, as if blossoms were unfurling with each movement.

"Watch carefully, Robin," Ikki said, turning to look at Robin after the demonstration ended. "With your abilities, even though you haven't learned swordsmanship yet, you should be able to defeat the sword shadow of 'Kanao Tsuyuri' in this training room."

Looking at the beautiful woman before him, Ikki couldn't help but feel the coincidence was remarkable.

Robin not only had the Flower-Flower Fruit ability, but the Zanpakutō he gave her was also Senbonzakura, which had flower-like characteristics.

Now, even the sword shadow obtained using the "Novice Swordsman Challenge Permission" was from Kanao Tsuyuri, who used "Flower Breathing."

Robin seemed destined to be associated with flowers in every way.

"What beautiful swordsmanship," Robin commented. "Ikki, if I defeat her, I'll gain her swordsmanship style, right?"

Though Ikki had explained how the sword shadows worked, Robin still found it quite mysterious.

"That's right. Beat her and you'll master the 'Flower Breathing' style she uses."

"I understand," Robin nodded slightly, confidence flashing in her eyes. "Though I don't know swordsmanship, if my opponent is who I just saw, I can win. She was fast with her final move, but against my Devil Fruit ability, that speed isn't enough."

Ikki nodded in agreement. In the original story, Robin had defeated many swordsmen using her Flower-Flower Fruit ability.

Without sufficient strength, it was difficult to get the better of Nico Robin.

"Go ahead then. I believe in you," Ikki encouraged. "After you defeat Kanao Tsuyuri, try to defeat Zoro's sword shadow, a Mountain-Cutting realm swordsman. That will let you reach the Iron-Cutting realm of swordsmanship."

Ikki glanced at the remaining 'Iron-Cutting Realm Swordsman Zoro Challenge Permission' in his system space.

Hearing this, Robin smiled softly and stepped into the arena.

Just as she predicted, Robin, with her higher life force and Flower-Flower Fruit ability, easily defeated Kanao's sword shadow.

She then used the same method to defeat Zoro's Iron-Cutting realm sword shadow.

[Name: Nico Robin]

[Age: 28 years old]

[Weapon: Senbonzakura]

[Life Force: 660, level C]

[Swordsmanship Realm: Iron-Cutting Realm]

[Swordsmanship School: Flower Breathing]

[Ability: Flower-Flower Fruit]

'Now she's somewhat like a swordsman,' Ikki thought, glancing at Robin's updated attributes before looking up at her as she walked out of the arena with a relaxed expression.

Robin approached him. "Ikki, what kind of training will we do next?"

She looked at Ikki with excitement in her eyes.

After truly experiencing the power gained from challenging sword shadows, she understood how Vivi had become stronger so quickly.

She also understood Ikki's abilities better.

Just the fact that someone could quickly gain swordsmanship knowledge by challenging sword shadows would make swordsmen all over the sea go crazy with envy.

'No wonder Ikki is confident about forming a fleet of great swordsmen,' Robin thought to herself.

"Next is training in the gym," Ikki said. "Here, these nutritional potions are for you. Using them while exercising in the gym will help you become stronger quickly."

As he spoke, Ikki seemingly pulled seven bottles of C-level nutritional potion and two bottles of B-level nutritional potion out of nowhere, handing them to Robin.

With Robin's life force at 660 points, these potions would be just enough to raise her to A-level.

"I understand, Ikki. I'll go to the gym to train," Robin said, placing the nine bottles of nutritional potion into a box.

Having easily gained swordsmanship power, she was highly motivated to benefit from the system's training.

"Wait a moment, Robin," Ikki raised his hand to stop her.

"What is it, Ikki?"

"Nothing important. I just want you to see the power of the sword you're holding before you go to the gym."

"My sword?" Robin looked at the blade in her hand that Ikki had called Senbonzakura. "So it does have special powers!"