The ancient Demon Lord Rimuru
CriticalCraft
  • Reads 32,741
  • Votes 1,105
  • Parts 25
  • Time 2h 19m
  • Reads 32,741
  • Votes 1,105
  • Parts 25
  • Time 2h 19m
CriticalCraft
Ongoing, First published Jul 23
Mature
2 new parts
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
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25 parts

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Perfected Tempest by Legandaryus
68 parts Ongoing Mature
Rimuru chooses to return to the past even if he has to erase what he already has to make a better Tempest kingdom than before. Just so he can have even more friends and loved ones then before that he lost, or was not knowledge enough at the time to help grow and become better along with himself and his nation. He also does it so he can make it so paperwork is someone else's problem but he will never say that. Little does he know that doing that gives him an even worse daily activity to deal with... Rimuruism
Rimuru The Void God In The Future Past by SokvanHD
14 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
Whispers of Affection: The Milim and Rimuru Love Story (Rewriten ) by Friris
26 parts Ongoing Mature
Hello! This is the rewritten version of the story. In this updated version, there will be several changes, including adjustments to the relationship between Rimuru and Milim, and at some point, the story will diverge significantly from the original light novel. Please excuse any errors in my English, as it's not my first language. If you notice any inaccuracies, such as errors regarding the kingship of certain countries, please leave a comment, and I'll make sure to correct them. Thank you for your understanding and feedback! Additionally, I will be evolving Raphael into Ciel quite rapidly, but Rimuru will not be progressing from Demon Lord to True Dragon at the same pace.
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.
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]
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 void dragon [Complete] by void_89
44 parts Complete Mature
rimuru is the twin brother of veldanava while veldanava has the power to create and Rimuru's has the power to destroy "That time I got reincarnated as a slime" belongs to the writer fuze Achivement 1 in rimuru(28-7-2024) 2 in tensura(25-5-2024) 1 in void dragon(25-5-2024) 2 in Rimurutempest(01-6-2024) 2 in veldanava (20-6-2024) 1 in velzard (30-6-2024) 1 in velgrynd (6-10-2024) 1 in oprimuru(22-11-2024) 1 in ciel(25-7-2024) 1 in Ttigraas (22-11-2024) 1 in slime(21-7-2024) 1 in milim (22-11-2024 2 in thattimeigotreincarnatedasaslime. (20-7-2024)
That Time I Got Reincarnated as a Slime Again? by StaciaPLE
62 parts Complete
Rimuru had been called to attend Walpurgis, by non-other than Guy himself. Realizing the dire situation, Rimuru makes haste to attend the banquet. But before he could properly arrive, in the middle of the transfer, an unknown mysterious power had sent Rimuru back in time. Back to his first appearance as a slime! This fanfiction is based on the Light Novel! Note: There is a re-write currently ongoing as I've decided to stop uploading chapters for this book. I do hope you check it out sometime.
Rimuru back 3000 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
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Slide 1 of 9
Perfected Tempest cover
Rimuru The Void God In The Future Past cover
Whispers of Affection: The Milim and Rimuru Love Story (Rewriten ) cover
The Emergence of Shinsha: A Hidden Legacy cover
Back In Time, But As Velzard? (Discontinued) cover
Rimuru the First Demon Lord cover
rimuru : the void dragon [Complete] cover
That Time I Got Reincarnated as a Slime Again? cover
Rimuru back 3000 year as a Fifth True Dragon cover

Perfected Tempest

68 parts Ongoing Mature

Rimuru chooses to return to the past even if he has to erase what he already has to make a better Tempest kingdom than before. Just so he can have even more friends and loved ones then before that he lost, or was not knowledge enough at the time to help grow and become better along with himself and his nation. He also does it so he can make it so paperwork is someone else's problem but he will never say that. Little does he know that doing that gives him an even worse daily activity to deal with... Rimuruism

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