A story I'm bringing over from Fanfiction. Inspired by CMBasher07's "RWBY Learns About Monster Hunter". Katana decides to show her guests a whole new world of fantastic creatures and have them learn all about the monsters humans have learned to coexist with over time... Even if those monsters constantly threaten to turn make humans non-existant.

Twenty-seven years have passed since the Great War and the rampage of the World-Destroying Dragon, which nearly wiped out all of civilization. The Cardinal World is now in a fragile phase of recovery. Under the leadership of Rimuru Tempest and the Council of Nations, cities are beginning to be rebuilt from the rubble of destruction. However, the trauma of the past still looms, and the current peace feels fragile. Amidst the strenuous efforts to heal the dying world, a massive space-time anomaly occurs in the border region of Jura Tempest. Not merely an ordinary dimensional rift, a magnificent structure shaped like a Giant Gate appears, radiating pure magical energy mixed with alien radiation.

After defeating Ivaraj and Feldway he evolve to the highest form of existence called Origin species, the world became peaceful and the residents in it start to called him The World Savior, The Great Hero. people began to say The Chaos Creator ended all the chaos in the world and brought peace through many struggle. Rimuru became a godlike figure of the world many began to worship and admired him which led him to not having many companions which left him a bit lonely but he finally accept that he is the supreme figure of this world and The King of Jura Tempest Federation which change to The Tempest Empire.

Just annoying bug

Have you ever wondered what will happen to Tensura in the future? So, I came up with my own alter universe.

When the battle between Rimuru Tempest and the ancient angel Feldway takes an unexpected turn, the Demon Lord of the Jura Tempest Federation is thrust into a world far beyond his imagination-Teyvat. Stripped of magicules but gifted with strange new powers, Rimuru must navigate a land filled with elemental forces, ancient gods, and powerful enemies. In this foreign world, Rimuru crosses paths with the Traveler, Aether, as they journey together through the mysteries of Teyvat. But as the winds of destiny shift, new alliances must be forged, and forgotten powers awaken. What happens when the monsters of Tempest meet the Archons of Teyvat? And can Rimuru protect this new world from the shadows lurking beneath the surface? A story where two worlds collide, and a slime becomes a hero in a land of elements.

A new dawn in a soul that was fated or perhaps a change in the fate of a wretched being

Cowritten with @CrestfallenSoldier Rimuru certainly didn't appreciate what he'd been dragged into. In a quiet moment of peace at the Freedom Academy, he had been relishing the joy of his students. But serenity is short-lived. Without warning, he is torn from his world, leaving him powerless to resist. Now, he is forced to confront an unfamiliar fantasy world, similar to his own, with only his instincts and the ever-present voice of Great Sage to guide him. What will this slime do?

It was about seventy years since Satoru Mikami died and was reincarnated as Slime. Now as Rimuru Tempest, the Chaos Creator and Demon Lord of the Jura Tempest Federation. He wonders how the Earth is right now. With the help Ciel. He will soon find out.