Rimuru and Ultima Goes To One Piece (Rimuru and Ultima x One Piece)

Chapter 1: Arrival in a New World

The shift between universes was instantaneous. One moment, Rimuru and Ultima were drifting through the chaotic swirl of space and time, the next, they found themselves standing on solid ground. As the world around them began to stabilize, they realized they had landed in a desolate, arid landscape.

A faint breeze blew across the cracked, rocky surface of the island they had arrived on, whipping up small dust clouds. The sky was a pale, endless blue, with the sun beating down relentlessly. Rimuru looked around, taking in the barren surroundings, his sharp senses alert for any signs of life.

Rimuru: "So... this is the new universe?"

Ultima: "Looks kind of... empty. Did we get sent to the wrong place?"

The silence was broken by Ciel's calm voice in Rimuru's mind, her tone reassuring and full of certainty.

Ciel: "No, Master Rimuru. You have arrived in the correct universe. You are currently on a deserted island in the North Blue, one of the four seas in this world."

Rimuru: "North Blue? And what kind of world is this, anyway?"

Ultima crossed her arms, her eyes scanning the horizon. It wasn't the most exciting location, but she knew better than to underestimate a new world. She focused inward, waiting for Azura to chime in.

Azura: "This world is known as One Piece. It is vast and dangerous, filled with powerful individuals and strange abilities. Unlike your old world, this one operates under a different set of rules."

Rimuru raised an eyebrow, intrigued.

Rimuru: "What kind of rules are we talking about?"

Ciel's voice continued, this time with a touch of curiosity in her own tone.

Ciel: "The primary power system here revolves around something called Haki and Devil Fruits. Haki is a mysterious force that allows individuals to sense spiritual energy, exert their will over others, and even harden their bodies to near-invincibility. Devil Fruits, on the other hand, grant users unique powers at the cost of their ability to swim."

Ultima's eyes widened at the mention of these powers.

Ultima: "Haki and Devil Fruits, huh? Sounds like fun. I wonder what kind of challenges this world has to offer."

Rimuru rubbed his chin thoughtfully. He could already feel a sense of excitement bubbling inside him. New powers, new challenges, a world with unknown potential—it was exactly what he and Ultima had been craving.

Rimuru: "Sounds interesting... But wait, if we already have our Ultimate Skills, isn't this going to be a bit too easy?"

Ciel responded almost instantly, as if she had anticipated the question.

Ciel: "To ensure that you experience true growth and excitement, I have temporarily sealed your abilities. You will not have access to your Ultimate Skills in this world, unless in cases of extreme emergency."

Ultima blinked in surprise, while Azura added with a hint of amusement:

Azura: "That applies to you as well, Ultima. Your strength remains, but your Manas skills and most of your power have been sealed. It's time for you both to train, to master the powers of this universe and explore the limits of your new abilities."