Rimuru : Journey with Straw Hat

The Thousand Sunny, sailing through the Grand Line.

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The sun hung high in the sky, casting its warm glow over the Thousand Sunny as it sliced through the waves. Onboard, the Straw Hat Pirates were enjoying a rare moment of peace. Luffy, their captain, was lounging on the deck, a goofy grin plastered across his face as he stared up at the clouds. Little did they know, a surprising twist of fate was about to unfold.

Suddenly, a shimmering portal appeared in the air above the ship. It spiraled and glimmered like the surface of a pond disturbed by a breeze. Out of it emerged a figure that brought a mix of awe and confusion to the crew.

Rimuru Tempest, a being of unimaginable power, landed gracefully on the sunny deck. He was a small, blue, slime-like creature with bright, glimmering eyes that radiated a sense of calm and strength. The Straw Hats stared at him, their jaws dropping in disbelief.

"What the hell is that?" Zoro grumbled, adjusting his swords as he eyed the newcomer suspiciously.

"Don't be rude, Zoro!" Nami scolded, eyes wide with curiosity. "It's... cute?"

"Cute? It looks like a jelly!" Sanji interjected, leaning forward to catch a better look. "But a jelly that can't possibly be good for you."

Rimuru wobbled slightly, his form shifting and pulsating as he regarded the crew with a friendly smile. "Hello! I'm Rimuru Tempest. I seem to have... crossed over to a different world."

"Crossed over?" Luffy exclaimed, sitting up abruptly.

"That sounds fun! Can you take us with you?"

"Luffy!" Nami shouted, exasperated. "We don't even know what he can do!"

"Yeah! What if he's dangerous?" Zoro added, crossing his arms.

Rimuru chuckled lightly, his eyes sparkling with mischief. "I promise I'm not dangerous. In fact, I can help you all. I'm a demon lord, you know? I can do a lot of things."

"Demon lord?" Franky chimed in, his mechanical eyes lighting up with interest.

"That sounds awesome! Do you have any cool gadgets or weapons?"

"Well, not really weapons in the traditional sense," Rimuru replied, glancing around at the crew.

"But I can absorb things and acquire their abilities. For instance..." He paused, and in a flash, transformed into a perfect replica of Luffy.

The crew gasped collectively, their eyes wide as they took in the sight. Luffy's grin widened as he beamed at the copy of himself.

"Whoa! That's amazing! You look just like me!"

"Isn't that a little weird?" Usopp asked, scratching his head.

"Are you like a doppelganger or something?"

{ Doppelganger = double of a living person. }

Rimuru, still in Luffy's form, laughed.

"Not quite! I can take on the appearance of anyone I encounter. It's more like... a talent of mine."

"Talent? More like a party trick!" Zoro scoffed, though he couldn't help but be intrigued.

"Can you fight?"

"Of course!" Rimuru replied, transforming back into his original form.

"I may look small, but I can hold my own in a fight. In fact, I'd love to spar with you, Zoro!"

Zoro smirked, his competitive spirit ignited.

"You think you can take me on? Alright, let's see what you've got!"

Before Zoro could draw his swords, Rimuru's form shifted again, this time transforming into a larger, muscular version of himself, resembling a powerful warrior. "How about this?"

"Whoa!" Chopper exclaimed, eyes wide.

"That's incredible! You can change your size too?"

"Yep!" Rimuru grinned, flexing his new muscles.

"And I can even use magic. Want to see? But it feels like something gone"

"Magic? " Nami echoed, her skepticism slowly fading.

"You mean like... real magic?"

"Absolutely!" Rimuru said, and with a flick of his slimy hand, he conjured a swirling orb of energy above them. It crackled with power, illuminating the deck with a vibrant glow.

" What might about to gone? " Robin said with curiosity .

"Whoa!" Luffy shouted, jumping to his feet.

"That's so cool! I want to learn how to do that!"

Rimuru let the energy dissipate into a shower of sparkles, leaving the crew in awe. "If you'd like, I can teach you some magic techniques. It could be fun!"

"Teach me too!" Nami insisted, her curiosity piqued.

"Imagine the possibilities! We could use it for navigation, for defense... it could change everything!"

"Yeah! Let's all learn!" Luffy cheered, bouncing on his feet.

"We'll be the strongest crew in the world!"

The atmosphere aboard the Thousand Sunny shifted from suspicion to excitement as the crew began to rally around Rimuru. He was no longer just a strange being; he was a potential ally, someone who could help them improve and grow stronger together.

As the crew began discussing what they would want to learn, Brook, ever the musician, chimed in.

"Can you teach me to summon some spirit music? I'd love to play a duet with you, Rimuru!"

"Spirit music?" Rimuru pondered, tilting his head.

"I haven't tried that before, but I'm sure we can come up with something together."

"Hey, Rimuru!" Usopp said, his eyes sparkling with inspiration.

"Can you make a giant cannon? I could really use one for my next invention!"

"Sure! I can create things, so why not?" Rimuru replied, his enthusiasm infectious.

"Just give me the details, and I'll make it happen!"

While the crew continued to brainstorm, Zoro stood off to the side, arms crossed and contemplating.

"So, if you can absorb abilities... does that mean you can take mine?"

"NO," Rimuru mused, absorbing Zoro's serious demeanor. "Will power is different thing, but I think it's more interesting to see how you fight first hand. Everyone has their own unique style, and I'd love to witness yours."

"Fine," Zoro replied, a hint of a smile creeping onto his face.

"But don't expect me to go easy on you."

"Wouldn't dream of it!" Rimuru responded, grinning back. "Let's make it an event! Everyone will want to see this!"

As the crew gathered around, Zoro and Rimuru prepared for their spar. Luffy clapped his hands together, excitement bubbling over.

"This is going to be awesome! Let's go, Zoro!"

The two faced off, and the air crackled with anticipation. Zoro drew his swords, ready for action, while Rimuru shifted back into his muscular warrior form, confident and poised.

"On the count of three!" Luffy yelled. "One... two... three!"

Zoro lunged forward, his sword slicing through the air with incredible speed. Rimuru, however, effortlessly dodged, his form shifting to avoid the attack.

"Impressive! Huh.." Rimuru called out, his voice filled with excitement.

"But you'll have to do better than that!"

It's look like rimuru body become weak!! Rimuru was also confused in his throught.

Zoro grinned, determination etched on his face. He charged again, unleashing a flurry of strikes, his swords a blur as he aimed for Rimuru. But the slime-like being continued to evade, his body transitioning seamlessly between forms.

"Is that all you've got?" Rimuru teased, mirroring Zoro's movements and creating a clone of himself that mimicked his attacks.

"Let's see how well you handle this!"

Zoro's eyes widened as he found himself fighting against not just Rimuru, but a perfect copy of himself as well. "What the-this is cheating!"

Rimuru laughed, enjoying the challenge. "All's fair in love and battle, Zoro!"

Just as Zoro was about to retaliate, Rimuru shifted into a giant dragon form, soaring above the deck. The crew gasped as the atmosphere changed dramatically.

"Let's see if you can keep up, swordsman!"

Zoro narrowed his eyes, focusing intently. "I can handle it. Just watch!"

With a powerful leap, Zoro propelled himself into the air, launching a devastating attack at Rimuru. The dragon form roared as it dodged, the crew watching in awe as the two engaged in an epic aerial battle.

"Go, Zoro!" Luffy cheered, pumping his fist in the air. "Show him what you've got!"

As the spar continued, the crew shared excited glances, their bonds strengthening with every moment. They had welcomed a new ally into their midst, someone who could help them grow and challenge them in ways they had never imagined.

Finally, after an intense exchange, both combatants landed back on the deck, panting but exhilarated. Zoro wiped the sweat from his brow, a satisfied grin on his face. "Not bad, Rimuru. You've got skills."

"Thanks! You're pretty impressive yourself," Rimuru replied, reverting to his original form.

"I enjoyed that. well zoro it's was very close i would say 90%"

"Now that was exciting!" Luffy laughed, clapping his hands.

"I can't wait to see what else you can do!"

As the sun began to set, casting a golden hue over the Thousand Sunny, the crew gathered around Rimuru, eager to learn more. They shared stories, laughter, and plans for future adventures together.

Rimuru looked around at the Straw Hat Pirates, feeling a sense of belonging. In this strange new world, he had found a crew that accepted him without hesitation. He smiled, ready to forge new bonds and embark on an incredible journey alongside his new friends.

"Let's make the most of this adventure!" Rimuru declared, his eyes shining with determination.

"Together, we'll conquer the seas!"

And as the Thousand Sunny sailed into the horizon, laughter echoed across the deck, a testament to the friendships that were forming and the adventures that awaited them all.

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NOTE : For certain reason Rimuru began to lost all of his power hour by hour.

What will be rimuru power? 

Answer = Rimuru can copy any devil fruit and can use 20% of that devil fruit potential