One Piece: My Crew Uses Zanpakuto

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"Mihawk, what did you do to Gion?" Tsuru turned her head and looked at Mihawk with a very serious face. A strong killing intent flowed from Tsuru's body. Gion was her adopted sister. Seeing her looking so weak, even Tsuru, who was usually calm, lost her cool for a moment.

"Oh, that's really scary. It reminds me of the days when Staff Officer Tsuru chased me." Doflamingo walked up to the group with casual steps. But as soon as he spoke, Tsuru looked at him with eyes full of killing intent. Doflamingo smiled widely and turned to look at Mihawk.

Tsuru knew that now wasn't the time to bother with Doflamingo, so she looked back at Mihawk, her eyes growing more serious.

"I was just sword fighting with her. Besides, I don't have Devil Fruit powers. You should ask her yourself about what's happening to her body." Mihawk put his Black Blade Yoru back on his back and spoke coldly.

As for Gion, her hair was now completely white, but her face stayed young, as if she had suddenly aged many years all at once. Mihawk was quite curious about this too.

"Tsuru, it's not Mihawk's fault. It's my problem." Gion sat down on the ground with Tsuru's help, looking a bit troubled.

"Gion, what's happening to you? Why do I feel your strength fading?" Sengoku walked closer with a deep frown. With his Observation Haki, he could clearly feel that Gion's energy had gotten much weaker. And now, the energy in her body was still fading at a scary speed. It felt like those soldiers who had diseases that couldn't be cured.

"It's the Demon Mark." Gion raised her hand and touched the moon-shaped mark on her neck. "I accidentally turned on the Demon Mark, that's why this is happening. Ikki once said that when a swordsman masters their sword style, they might unlock a power called the 'Demon Mark'. But this kind of power burns up the user's life force really fast. Usually, people with Demon Marks don't live past 25 years old. Warriors who get Demon Marks after age 25 won't live more than a day."

Gion thought about the fight she just had. She did feel her body gain powerful strength for a moment. But she didn't realize it was the power from activating the Demon Mark.

"25 years old? Gion, you're already over 25! Does that mean you..." Tsuru's heart sank, and her eyes started to turn red.

Nearby, Doflamingo wanted to say something mean, but he saw Tsuru, Sengoku, and Zephyr standing in front of him. In the end, he stopped himself from saying anything to mock Gion.

"So it's power that comes from burning up life force quickly. No wonder your strength grew so fast when fighting me. But there must be a solution to this Demon Mark thing. Otherwise, this sword style would be a waste." Mihawk said.

Hearing this, Tsuru looked hopefully at Gion. She wanted a clear answer from Gion.

"There is a solution," Gion nodded slightly and went on. "The 'Demon Mark' power isn't that easy to turn on. Mine turned on by itself, probably because my power reached the level needed for the Demon Mark. When I was fighting Mihawk just now, I got too excited."

She didn't tell the real way to unlock the Demon Mark power. After all, a Warlord was standing right there.

After a pause, Gion continued: "Ikki said if someone is born with Demon Marks, their life isn't affected when the marks activate. And if a swordsman gets the Demon Mark while trained by Ikki, their life won't be affected when it activates. When I was in Alabasta, I saw one of Ikki's crew members get Demon Marks. Though the girl isn't 25 yet, Ikki is actually 25. I don't think he would lie about the Demon Mark."

After saying this, Gion couldn't help but sigh. Before she and Hina left, Ikki had clearly warned them both to watch their heartbeats when using breathing sword styles. They shouldn't let their heart rates reach the level that would cause Demon Marks to appear. But in just a few days, she had unknowingly activated the Demon Mark because of her fight with Mihawk. It had even led to her quickly losing life force. Even Sengoku could feel her energy weakening, and Gion, as the person going through it, felt it even more clearly.

"Tsuru, I think I need to ask Ikki for help. In my case, I won't die within a day just because of the Demon Mark. This might be because of my personal situation. But I can't keep going like this. Even though my Demon Mark didn't appear while training with Ikki, I think he should know how to fix this Demon Mark problem." After thinking for a moment, Gion looked up and said to Tsuru.

"Yes, that's what I was thinking too. Now, let me take you to find Ikki myself. Sengoku, I need some time off. Also, please use our intelligence network to help me find where Ikki is." With that, Tsuru helped Gion stand and walked toward the coast.

"Don't worry, Tsuru." Sengoku nodded firmly. Gion was an important fighter for the Marines. Gion, who had mastered Moon Breathing, had grown stronger and was already among the best of the best. He didn't want Gion to die because of something like this. Personally, he didn't want Gion to be gone either. After all, he was the one who ordered Gion to go with Hina to learn sword skills from Ikki.

"Even though Ikki's sword style is great, it doesn't seem easy to learn. Even if you learn it, you still have to worry about the side effects of Demon Marks. Sengoku, let me go with Tsuru, just in case there's trouble." Zephyr waved to Sengoku and started to follow Gion and Tsuru.

"Wait, Zephyr." Sengoku put his hand on Zephyr's shoulder. "You have other duties. Let someone else escort Tsuru and Gion. Aokiji is on vacation in the first half of the Grand Line right now, so let him do it."

Zephyr thought about this for a moment and agreed. He trusted his student Aokiji.

"You guys, can you leave now?" Sengoku turned and looked at Mihawk, Doflamingo, and Bartholomew Kuma with a gloomy face.

"Fufufu, looks like our Buddha Sengoku is quite angry. It's better for me not to stay here right now." Doflamingo laughed and walked toward the coast with his strange walk.

Kuma closed his book and also walked toward the coast.

"Is he born with the Demon Mark? So Ikki can use that powerful power without any problems? To be able to teach Gion sword skills to this level, I wonder what kind of power you have." Mihawk turned back and looked carefully at the marks that Gion had made on the training ground using Moon Breathing, then turned and walked away.

Meanwhile, Ikki couldn't get married anyway. Gion, who had just left him a few days ago, was now starting a journey to find him again because of the Demon Mark.

On the other side of the sea.

Jaya Island, Mock Town.

"This town is full of criminals. Most of these criminals are pretty weak. But you guys should stay alert and don't trust others easily, especially don't take apples from strangers. Watch out for poison." Ikki was walking on the road to the largest bar in Mock Town (Pub), talking to his friends as they walked.

He still remembered that in the original story, the doctor of the Blackbeard Pirates gave poisoned apples to people in Mock Town. Anyone who ate the poison apple had their stomach explode right away. Even though there might not be any Blackbeard Pirates in Mock Town now, Ikki felt that as the captain, he should warn his crew.

"Really, Ikki, you're exaggerating. This isn't a fairy tale. Why would there be so many poisoned apples? Besides, even if we get poisoned, can't we just have Nojiko help us?"

"Right, Nojiko." Nami put her arm around Nojiko's shoulders and said with a smile.

"However, if you really get poisoned, you'll probably die on the spot. In other words, even if Nojiko has amazing healing skills, he won't be able to help." Nearby, Nico Robin, wearing a coat that covered her face, calmly said things that made Nami and Vivi shiver.

"Really, you're still like this, Robin." Vivi complained and quickly walked up to Ikki. "Hey, Ikki, is the captain of the Bellamy Pirates you mentioned really in this town?"