A bored Rimuru Tempest accompanies Diablo when he goes to meet with an old friend in the Netherworld. What will happen when he meets an out-of-place human boy who piques his interest? (Tensei Shitara Slime Datta Ken and Mairimashita Iruma-kun crossover)

Rimuru Tempest, the King of the Tempest Federation Country, who is also a Slime as well as a member of the Octagram (Eight Star Demon Lord). 24 years passed after the great war against Yuuki, Rimuru was currently surrounded by documents so numerous that they formed pillars. Peaceful and serene day as usual in Tempest, until an unknown calamity came upon the world.... Disclaimer: This story was made because it was inspired by Fuse-sensei's work. It's not as good as the original but I hope you enjoy the story.

rimuru get bored at tempest and decided to leave the world and go to another isekai as a........if you want to know then read it >\\\< notice: -tensura is not own by me -Sometimes i write without thinking so sorry if there is strange word or dialog -all the pic I use is not own or draw by me either

Rimuru comes to a decision since it's been a long awaited thing. With this decision he'll embark on another path that's to more power, fame, and growth. Different worlds will be anime,manga, manhwa, manghua, and my own made up worlds also I don't own Tensura or the anime,manga, and web/light novels as well as any of the Illustrations. But the story line of my fanfic is done by me. ----- 2022-1-5: I've come back to rewrite, improve, and try to develop the story

It has been 7000 years since the Great Tenma War. After defeating Yuuki, Rimuru has gone into a deep sleep at the End of Time and Space. While she was asleep The Jura-Tempest Federation had fellen into chaos and soon the country feel apart. Now, in the current era the existents of a so called being known as ,,The Chos Creater" , a beeing know to be abel to manipulate the laws of nature itself has become a legend and so very few people still think that it's true. Rimuru Tempest wakes up from her long sleep and decides to visit The Cardinal World in search of her family, The True Dragons. What will her adventure bring ? Will she once again be known as a saviour or will she bring distruction ?

Rimuru had retired from being the king of TEMPEST goes to sleep without saying anything to his subordinates and awakens after 10000 years. Author note This is my first story so there will be bad language/grammar mistakes so I apologise in advance so please enjoy and warning updated will be slow

It been 100 year since rimuru defeated yuki and evolved into a true God ,with nothing more left to do all he does is paperwork. Then he decided to travel the universe

Yep, another weird idea What if the eastern empire the one that won? Because a Slime!

Veldanava have another child and that is our lovable Rimuru Yup this is a remake since I'm not satisfied with the original This will be more wild and even weird Why? I don't know, this wasn't even what I planned when I wanted a remake

Rimuru, the Void Dragon and the Fourth True Dragon in existence, found herself in a peculiar situation. With Veldanava's death, she found herself accepting a deal with a High Elf whom said that he was an Otherworlder. Working with him on a mutually beneficial friendship. Entering a game that wagered the entire world. The Void Dragon is riddled with mystery, with her past only being known by Veldanava himself... Or was it?