One Piece: My Crew Uses Zanpakuto

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"Ikki, are all these for me?" Nami took the six bottles of strengthening potion and asked in surprise.

After saying that, she glanced at Nojiko and Vivi with concern.

As a crewmate, she felt that hoarding so many strengthening potions was a bit too selfish.

"As you saw just now, Gion's sword shadow is very powerful," Ikki explained. "I want you to defeat her and quickly advance in your swordsmanship. The six bottles of strengthening potion in your hand are the key."

"If we spread them out among everyone, I'm afraid none of you will be able to defeat Gion's sword shadow for a long time. But if one of you can defeat her and move one step closer in your sword realm, your Zanpakutō might be able to achieve Bankai."

"So instead of spreading our resources thin, I think it's better to let one of you gain the full power of your Zanpakutō first. You've all seen what your Zanpakutō can do after achieving Bankai in your inner worlds. It can take your abilities to a whole new level."

Ikki patted Nami on the shoulder reassuringly.

"Ikki is right. Rather than spreading resources around, it's better to let Nami become stronger first," Nojiko added, putting her hand on Nami's other shoulder with a smile. "As long as one of us has a Zanpakutō capable of Bankai, the overall strength of the Explorer will improve dramatically. It's good for all of us."

Though Vivi didn't speak, she also nodded to Nami in agreement.

"Well... okay then," Nami said. Though she felt a bit guilty, with the encouragement of the other three, she accepted the six bottles of strengthening potions.

Under Ikki's guidance, she first took the 'Intermediate Armament Haki Awakening Potion' and the 'Intermediate Observation Haki Awakening Potion'. The remaining four bottles of 'A-grade nutritional potion' would be used over the next four days of training.

"How do you feel, Nami?" Nojiko asked curiously.

"It's a really weird power," Nami stretched out her hands and instinctively activated Armament Haki.

In Nojiko and Vivi's eyes, Nami's normally pale hands instantly turned black.

"Is this the Armament Haki that Ikki used before? It's so hard!" Nojiko poked Nami's blackened arm curiously, her face full of wonder.

"We'll try it out later. Armament Haki can be used in many ways, and it works really well with swordsmanship," Ikki said. "And there's also Observation Haki. With intermediate Observation Haki, you might be able to quickly develop your Transparent World ability through this knowledge. If you have any questions, just ask me."

With that, Ikki turned to Nojiko and Vivi and handed them each one of the remaining bottles of A-grade nutritional potion.

"Each of you can take one of these. Though they won't increase your life force to the next level, they'll at least improve your physical abilities significantly. But since we have visitors these days, be careful to avoid them when using the potions."

Hearing this, Nami and Nojiko nodded.

They understood that over the next few days, Hina and Gion would be spending a lot of time in the gym area.

"Alright, you guys can watch the training. I've accepted Gion's sword, and I need to keep my promise." Ikki waved to his crewmates, then opened the door of the Sword Training Room and walked into the gym next door.

"What? You were defeated by Ikki? Gion, you're not lying to me?" In the gym's bathhouse, an exclamation came through the Den Den Mushi in Gion's hand.

"Yes, I was indeed defeated by Ikki, Fleet Admiral Sengoku," Gion replied. "It wasn't a life-or-death battle, but after the strange sword in Ikki's hand transformed a second time, his power rose to a truly terrifying level. I believe his strength might be equal to mine."

Gion sat on the edge of the bath with her white legs dipped in the water.

In the middle of the pool was Hina, who had submerged her body completely, with only her head above water.

"His sword can transform twice? What kind of bizarre ability is that?" Sengoku asked, scratching his afro doubtfully.

"My guess is that Ikki's sword ate some kind of Zoan-type Devil Fruit," Gion explained. "Based on what I've seen of the sword's abilities, I think it might have eaten a Mythical Zoan Devil Fruit. That would explain why it doesn't take on a specific animal form."

Hearing Gion's words, Sengoku immediately frowned.

"Are you sure about this, Gion?"

"I'm not certain, but my Observation Haki sensed that Ikki's sword seemed almost alive."

"I see! Can you tell me what abilities his sword showed?"

"After transforming into its second form, Ikki's sword..." Gion was explaining, but suddenly stopped as if sensing something, and looked toward the door.

There, Ikki was walking over with a smile on his face.

"Gion? What's wrong?" When Gion suddenly stopped talking, Sengoku immediately asked.

"That voice... is that Fleet Admiral Sengoku speaking with you?" Ikki asked with interest as he walked up to Gion and sat down cross-legged.

"Are you... Ikki?"

"Hello, Fleet Admiral Sengoku."

"Don't misunderstand, Gion is just giving me a routine report," Sengoku clarified.

"Haha, don't worry, I'm not bothered. You're just curious about my sword, right? Go ahead, I'll just listen." The corner of Ikki's mouth turned up. Although he hadn't heard the entire conversation between Sengoku and Gion, he got the general idea.

As for Gion reporting Tensa Zangetsu's abilities to Sengoku, Ikki didn't mind at all.

Those abilities had already been revealed to her during their fight.

Gion smiled gently at Ikki, then continued speaking to the Den Den Mushi:

"I believe Ikki's sword significantly increases his speed after transforming to its second form. When I was fighting him, I felt like I was facing Admiral Kizaru. The second notable thing is the strange black energy it produces."

On the other end of the call, Sengoku raised his eyebrows. "Comparable to Kizaru's speed?"

"By the way, Fleet Admiral Sengoku, I'm calling because there's something else I want to tell you," Gion continued. "Ikki has agreed to share some of his swordsmanship knowledge with me and Hina. The exchange is my sword Konpira and teaching him Geppo from Rokushiki. I've already agreed to this."

"Because we need to learn Ikki's swordsmanship, Hina and I will need to stay in Alabasta for a while. I've handed command of my warship to my assistant, so they can return to base. Hina and I will come back together on her ship later."

"That's excellent news," Sengoku replied. "If Ikki is willing to share more of his swordsmanship knowledge, we'd be willing to teach him the complete set of Rokushiki techniques."

Learning Ikki's swordsmanship was just one of Sengoku's goals.

As for Geppo, it was fine to share that with Ikki.

If Ikki's swordsmanship knowledge proved truly valuable, the entire Rokushiki set could also be shared with him.

"No thanks, I'm only interested in Geppo from your Rokushiki," Ikki shook his head. "The others aren't that useful to me, especially Tekkai. People who rely on that technique against enemies often end up defeated."

Among the Rokushiki techniques, the only one valuable to Ikki besides Geppo was Soru.

But such a movement technique didn't have much benefit for Ikki, who had already mastered Thunder Breathing.

As for the rest, they had no appeal.

Especially Tekkai.

He didn't want to become overconfident after learning Tekkai, which might lead to him being defeated when facing enemies in the future.

"Using Tekkai leads to defeat? I don't quite understand what you mean, Ikki!"

"Haha, it's just a joke, don't mind it, Fleet Admiral Sengoku."

"I see... Ikki, I wanted to ask how much time you'll need to train Gion and Hina. I need to make arrangements for their duties."

"About ten days. After that, I plan to continue exploring the sea."

"Understood!"

Sengoku nodded, and after a few more words to Gion and Hina, he hung up.

As for inviting Ikki to join the Marines, since Gion had already tried and failed, Sengoku didn't plan to attempt it again.

"Let's get started then. Who wants to go first?" Ikki looked at Gion and Hina.

"Let Hina go first. I can wait," Gion smiled at Ikki, then looked down at Hina in the pool with her hair tied up.

"Alright." Ikki nodded slightly and extended his hand to Hina. "Give me your hand, Hina. To make sure you can learn this within ten days, I may need to use some harsh methods. I hope you don't mind."

Hina nodded, approached Ikki, and took his hand.

She had already prepared herself for the pain.

Ikki focused and rhythmically changed his breathing pattern to Flame Breathing.

The next second, blazing flames appeared on his body's surface.

They quickly spread to cover Hina's entire body, turning her into a human torch.

Engulfed in scorching flames, Hina immediately frowned.

At the same time, the bathhouse water began to boil and evaporate from Ikki's intense flames.

Hina's flame-wrapped body was now exposed to both Gion and Ikki.

Ikki raised his eyebrows and unconsciously glanced downward.

"Where are you looking? Eyes up, Ikki!" Hina endured the burning pain and spoke in a strained voice.

"Sorry, that was just instinct," Ikki smiled apologetically at Hina, then began to concentrate on helping her body adapt to the flames.

After ten minutes, feeling the time was sufficient, Ikki waved his hand to disperse the flames covering Hina's body.

"Haaah..." Hina took a deep breath and examined her body.

Her skin had turned bright red from the intense heat of the flames.

There were even some minor burns in certain areas.

Of course, these small injuries alone weren't enough to make Hina flinch.

What made her uncomfortable was the feeling that every cell in her body had been set on fire.