Let's take it a step further.

Tensura (AU) The story starts from when Rimuru awakened as a True Dragon instead of True Demon Lord. His personality will be slightly changed from before his awakening. Some new characters will be introduced, and lore will be slightly different. Character settings will also changed. Rimuru x Hinata x Luminous

With the world at peace, Rimuru Tempest grows bored. Guided by Ciel, his hidden Manas, he creates a parallel reality and travels 2,000 years into the past, leaving a copy of himself in the present. In this ancient era, Rimuru rises as a legendary Ancient Demon Lord, shaping civilizations and magic Disclaimer: This is a fanfiction story created by the author for entertainment purposes only. All characters, settings, and story elements belong to Fuse, the original creator of That Time I Got Reincarnated as a Slime (Tensura). This work is not official canon and is purely a creative exploration of the world and characters in an alternate universe scenario.

Elpis the first born of Veldanava decided to return to his original world after being sent to another world because of his unstable and powerful soul after a long time his back to his own world. Ciel x Elpis/Rimuru Luminous x Elpis/Rimuru Ellen x Elpis/Rimuru Chloe x Elpis/Rimuru Shuna x Elpis/Rimuru Shion x Elpis/Rimuru

--Translation-- This is a story of "That Time I Got Reincarnated as a Slime" with the perspective of Rimuru becoming a woman. The plot will be changed a bit. This story is just for entertainment, so just enjoy. A translation of Tensura : Rimuru Is a Girl by Red__Light__ (https://www.wattpad.com/story/293857331-tensura-rimuru-is-a-girl-rimuru-tempest) I in no way own Tensura, any of the characters or the original Fanfic!