The ancient Demon Lord Rimuru
CriticalCraft
  • Reads 30,178
  • Votes 1,038
  • Parts 23
  • Time 2h 8m
  • Reads 30,178
  • Votes 1,038
  • Parts 23
  • Time 2h 8m
CriticalCraft
Ongoing, First published Jul 23
Mature
ancientbackintimechangecieldemonlordfanfictionguypastrimuruslimetensuratimetimetravelvelzard
More than 200 years have passed since the war between the Empire and the victory over Ivarage. Rimuru is currently sitting in his office, bored out of his mind. His loyal partner Ciel sees his situation and gets an idea that can solve Rimuru's boredom. Come along on your journey as Rimuru travels over 20,000 years into the past to become an ancient demon lord.
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ancientbackintimechangecieldemonlordfanfictionguypastrimuruslimetensuratimetimetravelvelzard
Table of contents

23 parts

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Rimuru back 1000 year as a Fifth True Dragon by EliteX0
22 parts Ongoing
During the Final Battle Against Feldway, he had inevitably sent Rimuru to the end of time and space. After Feldway send Rimuru to the end of time and space Rimuru decide to find a way to go back when he's wake up However, Chrono-Saltation, had not only thrown Rimuru to the end of time and space, but it had also locked him out from returning to the world using Space-Time Leap. As if banning Rimuru's existence itself from the world, preventing his return. And Ciel also tell him that his timeline had already destroyed so he cannot go back after hearing that Rimuru start to feel a lot of emotion inside him sadness regret and pain all the emotions you can think of come to him at once and start to make him go insane In the end, Ciel find a way to time travel to the past but risk is to high it can destroy rimuru's Spiritual body, if anything goes wrong. And so can rimuru go back in a time unharmed ? And what will be the consequences of it ? In this fan-fiction, Rimuru will be OP, respectful, serious when needed, and goofy. There will be other characters that will be more powerful than Rimuru at the start. (Keep in Mind, this is Fan-Fiction. So not everything here will be accurate and a lot of things will be changed.) All Rights Reserved
The Destined One by Rimuru6360
28 parts Ongoing
The final battle with Ivarage was, to put it briefly, catastrophic. The majority of the Cardinal World and Tempest were gone. Only people with True Dragon Level strength were alive...Diablo was the only one of his subordinates who was still alive. In desperation, everyone agreed to buy some time for Rimuru to jump into the past and alter the outcome of the battle. So Rimuru, who has forgotten everyone yet remembers everyone, has jumped into the past. But the price of jumping into the past without Ivarage following him was to heavy... all of his power has disappeared. Now, a slime with two unique skills and the memory of a novel called Tensura has begun a new journey in the distant past, when Veldora was just born.
Rimuru the First Demon Lord by VioMC12
19 parts Ongoing Mature
In this story, rimuru has died but due to his wishes he went back in time and become a slime? now with his new found powers and skills, he strod off into the unknown and it seems he is not a normal slime but a demon slime? and he is the only SENTIENT BEING IN THIS REALM! Now surrounded by mindless demons, what will this slime do? Rimuru due to his strong if not stronger soul changes his gender into a male Instead of veldora, veldanava will be his 'sworn friend' since there are almost no other sentient beings other than a few Rimuru will also later evolve into a primordial instead of being one from the beginning. don't ask me how I don't know either Rimuru and ciel will also be with each other wayyy longer hence they become a bit 'EXTREMELY YANDERE ON EACH OTHER' uhmm a bit obsessive. also my first time writing a story + haven't read the light novel but kinda know the order and story to an extend + I'm a 6th grader so I don't know a lot of words I can use for my story to express my story BUT I hate spelling mistakes and will probably not make any but a few. I do not own the tensura series or light novel it belongs to fuze san(I think that's his name?) also if any one copies my story without my permission I WILL SEND YOU TO JESUS Taking inspiration is very much allowed
Rimuru the New Beginning As Primordial Demon Violet by Veldanava-God
29 parts Complete
Rimuru goes to the end of space and time and tries to go back. However, unlike the timeline of the novel in this one, Rimuru returns to the beginning of time as the Primordial Demon Violet. #Rimuru #Demon #PrimordialDemon #Ultima #ttigras #Violet #Tempest #TimeTravel 2# rimuru 22/9/2024 3#primordialdemon 22/9/2024 1#rimuru 25/9/2024 2#ttigras 25/9/2024 2#primordialdemon 25/9/2024 2#tensura 3/10/2024 1#demon 13/10/2024 2# demon 15/10/2024 2# demon 18/10/2024
Rimuru's boredom and his regrets(Time Travel) Tensei Shitara Slime Datten Ken by Sakura-Arashi
15 parts Complete Mature
50 Years after the great tenma war Rimuru is in his office doing paperwork Rimuru being the ruler of the monster nation he's forced to do paperworks bored out of his mind he consult ciel on what to do she then suggest to travel back in time to fix all his mistake and get rid of his regrets GUARANTEED (SHIZU X RIMURU) Possibly (RIMURU X CIEL) (RIMURU X THE DEMONESS TRIO) (RIMUR X VELZARD AND VELGRYND) (RIMURI X RUMINAS) (RIMURU X CHLOE AND HINATA) THIS IS MY 1ST STORY SO IM SORRY IF ITS NOT TO YOUR LIKING TELL ME MY MISTAKES IN THE COMMENTS THANKSSS ⚠️WARNING⚠️ I DONT OWN TENSEI SHITARA SLIME DATTA KEN(THAT TIME I GOT REINCARNATED AS A SLIME)
Tensura - Beyond Expectations by Rimuru6360
43 parts Complete
A 15 year Otaku girl died while saving a lady from a robber, when she thought her life was over, she got reincarnated in Rimuru's body when he first reincarnated in the tensura world. Now follow Yuu (later named Rimuru) in her adventure. Tensura fanfiction, but an OP main character from the start, HOW!! Just read and find out. Note - This book is the continuation of Rimuru Journey. Note - English is a secondary language, so grammar and spelling mistakes are common. And I don't own "THAT TIME I GOT REINCARNATED AS A SLIME" I only own this fan fiction story.
Rimuru The Void God In The Future Past by SokvanHD
13 parts Ongoing
After Feldway send Rimuru to the end of time and space Rimuru decide to find a way to go back when he's wake up but Ciel tell him that his timeline had already destroyed so he cannot go back after hearing that Rimuru start to feel a lot of emotion inside him sadness regret and pain all the emotions you can think of come to him at once and start to make him go insane Ciel after seeing this decide to seal his memory away and cause him to go to a long sleep, and when Rimuru wake up had no memory of anything about himself only his name start to go on his own journey
Back In Time, But As Velzard? (Discontinued) by diamondwolf146
20 parts Complete
This story begins at the end of the war in the ttigraas WN and when Rimuru gets sent to the end of space/time and when he awakes and goes in time it malfunctions and he's sent back as velzard 20.000 years before he was born these characters not belong to me and belongs to fuze-sensei Disclaimer: none of the art belongs to me, if you wish for it to be take down I will replace it #1 Back [27 Dec, 2022] #1 Veldora [19 Oct, 2022] #1 Velzard [1 Sep, 2022]
The Emergence of Shinsha: A Hidden Legacy by Joeazar2006
7 parts Ongoing
Two centuries after the Great Tenma War, peace reigns in Tempest under Rimuru Tempest's rule. With no threats looming, Rimuru indulges in magical experiments. During one such experiment, he accidentally creates a pink slime with an aura identical to his own. Ciel, Rimuru's ever-present partner, immediately recognizes the anomaly. Upon investigation, she concludes that Rimuru has unknowingly created his own child. This pink slime, named Shinsha, possesses a soul that has traversed through multiple timelines, carrying memories and experiences beyond comprehension. Shocked yet elated, Rimuru decides to keep Shinsha's existence hidden from the world. Though thrilled at becoming a father, he worries about the consequences her presence might bring. For ten days, he secretly cares for Shinsha, learning the unexpected joys and responsibilities of fatherhood. At the next Walpurgis, an assembly of the Demon Lords, Guy Crimson, the Lord of Darkness, notices a subtle shift in Rimuru's aura. His instincts flare up, sensing something different about his fellow Demon Lord. Growing suspicious, Guy confronts Rimuru, demanding to know what he is hiding. Faced with the pressure, Rimuru must decide whether to reveal the truth about his daughter or continue to keep her existence a secret. Shinsha's emergence could disrupt the balance of power, potentially altering the world in ways none of them can predict.
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Slide 1 of 9
Rimuru back 1000 year as a Fifth True Dragon cover
The Destined One cover
Rimuru the First Demon Lord cover
Rimuru the New Beginning As Primordial Demon Violet cover
Rimuru's boredom and his regrets(Time Travel) Tensei Shitara Slime Datten Ken cover
Tensura - Beyond Expectations cover
Rimuru The Void God In The Future Past cover
Back In Time, But As Velzard? (Discontinued) cover
The Emergence of Shinsha: A Hidden Legacy cover

Rimuru back 1000 year as a Fifth True Dragon

22 parts Ongoing

During the Final Battle Against Feldway, he had inevitably sent Rimuru to the end of time and space. After Feldway send Rimuru to the end of time and space Rimuru decide to find a way to go back when he's wake up However, Chrono-Saltation, had not only thrown Rimuru to the end of time and space, but it had also locked him out from returning to the world using Space-Time Leap. As if banning Rimuru's existence itself from the world, preventing his return. And Ciel also tell him that his timeline had already destroyed so he cannot go back after hearing that Rimuru start to feel a lot of emotion inside him sadness regret and pain all the emotions you can think of come to him at once and start to make him go insane In the end, Ciel find a way to time travel to the past but risk is to high it can destroy rimuru's Spiritual body, if anything goes wrong. And so can rimuru go back in a time unharmed ? And what will be the consequences of it ? In this fan-fiction, Rimuru will be OP, respectful, serious when needed, and goofy. There will be other characters that will be more powerful than Rimuru at the start. (Keep in Mind, this is Fan-Fiction. So not everything here will be accurate and a lot of things will be changed.) All Rights Reserved

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