Just a minute ago, Rimuru Tempest, together with his partner Ciel, was fighting against Veldora and Velgrynd, two true dragons. But in the next instant, Rimuru woke up in Veldora's cave, where the said dragon had previously been imprisoned. But the strangest thing is that he returned to his original form as a slime, without evolving into a Demon Lord, and at least his partner Ciel is with him. One thing is clear: he has returned to the past, but how and why?

Ayanokoji kiyotaka After destroying Every opponents in 3rd year as well as whiteroom but something unusual happened which lead Ayanokoji Kiyotaka teleported into the world of tensura. 18+ as well.

The story got tweaked a little bit...

After achieving absolute peace and unity across the Central World, Rimuru Tempest finds himself bored in an era free of conflict. To bring back excitement and satisfy his curiosity, he works with Ciel to create a separate parallel dimension-Parallel Sector-Omega-an exact replica of the multiverse's history where he can observe and interact without affecting his original reality. Suppressing nearly all his divine power to appear as a powerful Demon Lord, Rimuru arrives at the very beginning of time, just as the Star King Dragon Veldanava is born. What starts as a simple observation quickly turns into playful chaos, beginning with a silly prank that confuses the creator of the world itself. As thousands of years pass, Rimuru waits for the right moment to step fully into the timeline, ready to meet legendary figures, alter history in unexpected ways, and enjoy a new adventure filled with mischief and discovery.

Little Ayanokouji Kiyotaka spent eleven years trapped in the White Room-until a brilliant, chaotic detective named Reiji Arakawa pulled him out. For the past four years, Kiyo has been solving cases alongside his adoptive father, mastering the art of deduction in a world he was never meant to live in. Now fifteen, he steps into Advanced Nurturing High School, a place full of curious classmates and hidden rivalries. But the past doesn't stay buried. When he starts to eventually get recognized as the son of the famous detective-known for solving countless cases with his father-Kiyo must confront a world that's far more dangerous than any classroom exercise. English is not my first language. I do not own Classroom of the Elite. Yes, kiyo's adoptive father is an original character (OC).

Come join Rimuru on his adventure around the world of Tensura meeting new friends and making enemies. How will Rimuru deal with this find out by reading this story! What if Rimuru was born in Tensura not Reincarnated What if Rimuru was a Phoenix Rimuru x Velzard Note: I did NOT make the cover of this story. Credit to Demon--Eater for making it

Future Rimuru rewinds time to his Demon Lord evolution to fix everything, but instead gains a desire-manipulating skill that causes lust-driven chaos and forces him to wear a blindfold to control it.

After deafeting Ivaraje, Rimuru had lived peacefully for thousands years and starting to get bored. Suddenly ciel propose on going back in time where all chaos started . So how will the journey goes if he accept Ciel idea The character isn't mine, Credit for Fuze

In this story, Rimuru will be a primordial Demon, and a silver one at that. We will also have a ninth primordial, the Blank Primordial, Mira. PS. This story is AI-assisted. Worldbuilding, plot, and character direction are mine; ChatGPT helps with scene writing and prose.