What do you think?
Rate this book
That Time I Got Reincarnated as a Slime Light Novel #15
That Time I Got Reincarnated as a Slime (Light Novel), Vol. 15
After a fierce battle, Veldora has fallen into the enemy's clutches, and Rimuru is furious. The order comes down to unleash a massacre, and Benimaru and the other Tempest executives couldn't be more thrilled. The fuse has been lit for the final battle between Tempest and the Eastern Empire. But if he wants to save Veldora, Rimuru will need to evolve even further. It's time to release the power he's been holding back!
400 pages, Kindle Edition
First published September 28, 2019
136 people are currently reading
512 people want to read
Ratings & Reviews
Friends & Following
Create a free account to discover what your friends think of this book!
Community Reviews
Displaying 1 - 30 of 30 reviews
May 6, 2021
A good way to round up the Empire attack arc, despite it being somewhat jarring that Rimuru is suddenly one of the 4 dragons (massive spoilers, I know). Rimuru getting round to naming Ciel was a good way to actually humanise one of his closest partners I think, and their rapport between each other was entertaining as always (perhaps even more so than Raphael days).
This entire review has been hidden because of spoilers.
October 14, 2019
Starting to get very formulaic.
The main character and his allies get in trouble, then they all level up and crush their enemies. Rinse and repeat.
The main character and his allies get in trouble, then they all level up and crush their enemies. Rinse and repeat.
December 4, 2022
This volume was almost only fights between Rimuru and his friends against various Empire officers, and the fights were not particularly good, mostly the good guys powering up through various deus ex machina (Hi Ciel !) and then beating up the bad guys. It felt like reading a mediocre battle shonen in book form, so it was very disappointing. It also marks the end of the Eastern Empire invasion arc, but that arc was in my opinion the worse in the series, and I found myself losing interest in it.
This makes me kind of sad, since it was the first light novel series I ever read, and the manga adaptation is still one of my favourite manga. But unlike the manga, the light novels were always plagued by mediocre translation and bad writing, with the author having a strong tendency towards inane infodumps, poor pacing, and boring fights. It had however an interesting plot centred on nation-building and diplomacy, as well as interesting and likeable characters, which is why I originally liked it, but that went out of the window when the Empire arc started, and I am not sure the series can go back on track after this, especially since Rimuru and his followers are now extremely overpowered compared to everyone else. I will still be reading the manga, as I have always found it far better than the light novels, but I probably won’t continue with the light novels themselves.
This makes me kind of sad, since it was the first light novel series I ever read, and the manga adaptation is still one of my favourite manga. But unlike the manga, the light novels were always plagued by mediocre translation and bad writing, with the author having a strong tendency towards inane infodumps, poor pacing, and boring fights. It had however an interesting plot centred on nation-building and diplomacy, as well as interesting and likeable characters, which is why I originally liked it, but that went out of the window when the Empire arc started, and I am not sure the series can go back on track after this, especially since Rimuru and his followers are now extremely overpowered compared to everyone else. I will still be reading the manga, as I have always found it far better than the light novels, but I probably won’t continue with the light novels themselves.
July 15, 2021
I actually liked this volume quite a lot. There is a lot of action and many characters get to show off. But Rimuru and all their companions get Deus Ex Machina like powers. Though the way Rimuru is granted these powers is cohesive with the story, his companions get the level up during their fight when they are about to be defeated. This happens multiple times in a row, while entertaining it gets a bit annoying. In addition I dislike the implication surrounding Masayuki. It is revealed that he is basically the reincarnation of Rudra and thus a time paradox is created because at the point in the story where Velgryd goes on to find the fragments of Rudra, Masayuki has already been in the world since around volume 10. In addition it is implied that Rimuru and the star dragon have some powers in common. I hope it does not turn out that the whole story is about time travel and predestination. Still I am really excited how this story ends.
This entire review has been hidden because of spoilers.
March 28, 2023
The Empire arc is finally over (or mostly over?) and I have mixed feelings. Overall, I like what was present, but not the execution. The storytelling always felt three steps ahead and two steps back, almost as if it were circular. That made large chunks of it feel like a slog.
My biggest issue is the structure and reading the afterward really made me wish they had extra time for this whole arc to have gone smoother considering we’re now knocking at the door to One Piece level of cast of characters. Sometimes it’s a headache, especially when characters haven’t gotten on your good side yet.
I’m hoping the next volume slows down. Between this and volume 14 I’m all actioned out.
My biggest issue is the structure and reading the afterward really made me wish they had extra time for this whole arc to have gone smoother considering we’re now knocking at the door to One Piece level of cast of characters. Sometimes it’s a headache, especially when characters haven’t gotten on your good side yet.
I’m hoping the next volume slows down. Between this and volume 14 I’m all actioned out.
November 22, 2022
The volume that made me drop the series. I finally realized that it's just been nonstop *teleports behind you* fight scenes for the past few volumes, and virtually none of the fights have stakes to them, and I found myself just skipping forward to the end of the fight. Everyone goes Super Saiyan Ultra Blue Instinct God Supreme God Max, blah blah. The series just isn't for me anymore. If you like reading hundreds of pages of fight scenes, you'll have a great time, but I just stopped caring.
April 17, 2023
This one was actually fun. Again there were still so many pages that were boring but the rest made up for it.
November 9, 2023
That Time I Got Reincarnated as a Slime is still my favorite light novel series. There are so many memorable characters and a pretty good plot throughout the series. In Vol. 13 the empire decides to attack the city of Rimuru and they employ a great strategy using the labyrinth to trap and massacre their enemies. Vol. 14 is amazing because we finally see two of the strongest beings Veldora and his sister Velgrynd fight against each other. I loved seeing how Veldora has matured and become stronger thanks to Rimiru. Rimuru and his friends decide to attack the empire but then the tables turn against them.
Now in vol. 15, I got very excited with the introduction of new challenges. The conclusion of the True Dragons fight was amazing but expected, and the evolution of Ciel along with Rimuru's was very hyped at first. But, the series is starting to become a very repeating pattern. They are in trouble and then they just magically power up out of nowhere, and beat everybody up with no major challenge. I guess that is somewhat expected of anime, mangas, and light novels in general, but the whole series had a better narrative in the first books.
The most amazing about the series is how well Fuse manages such a large and memorable cast of characters, and introduces many others in each volume. This time around, though, nothing impressive occurs in terms of new characters. I was expecting the four knights to be absolutely broken, just like Rimuru's Big Four or stronger. But they were not, which was disappointing. Although this volume is heavy on the battles, they are mostly long and boring compared to previous volumes. Overall, a good book. I cannot expect to be too impressed in the next volumes, considering how Rimuru and his friends are ridiculously overpowered. But I have come this far in the series and I will see it through to the end!
Now in vol. 15, I got very excited with the introduction of new challenges. The conclusion of the True Dragons fight was amazing but expected, and the evolution of Ciel along with Rimuru's was very hyped at first. But, the series is starting to become a very repeating pattern. They are in trouble and then they just magically power up out of nowhere, and beat everybody up with no major challenge. I guess that is somewhat expected of anime, mangas, and light novels in general, but the whole series had a better narrative in the first books.
The most amazing about the series is how well Fuse manages such a large and memorable cast of characters, and introduces many others in each volume. This time around, though, nothing impressive occurs in terms of new characters. I was expecting the four knights to be absolutely broken, just like Rimuru's Big Four or stronger. But they were not, which was disappointing. Although this volume is heavy on the battles, they are mostly long and boring compared to previous volumes. Overall, a good book. I cannot expect to be too impressed in the next volumes, considering how Rimuru and his friends are ridiculously overpowered. But I have come this far in the series and I will see it through to the end!
June 17, 2024
Interesting
I really enjoyed reading this volume. It was hard to follow with so many battles and the introduction of new characters. I don't quite grasp the evolution of the trio demons. Also how did Carillon and Frey happen to have siblings and never been mentioned. In addition why the sudden evolution to true demon lords? I felt like a rather convenient opportunity for them to just upgrade them. The story line is good but some of the side stories make no sense. Also why did Diablo let the mist lord go away? So many questions.
I really enjoyed reading this volume. It was hard to follow with so many battles and the introduction of new characters. I don't quite grasp the evolution of the trio demons. Also how did Carillon and Frey happen to have siblings and never been mentioned. In addition why the sudden evolution to true demon lords? I felt like a rather convenient opportunity for them to just upgrade them. The story line is good but some of the side stories make no sense. Also why did Diablo let the mist lord go away? So many questions.
January 11, 2023
Excellent!
The story is getting good and the differences with the WB are interesting. The WN is a lot more black and white than the LN version but it keeps it interesting for people who’ve already read the WN. There’s new characters and some of the old ones, like Yuuki, have changes significantly. I’m excited for the next volume.
The story is getting good and the differences with the WB are interesting. The WN is a lot more black and white than the LN version but it keeps it interesting for people who’ve already read the WN. There’s new characters and some of the old ones, like Yuuki, have changes significantly. I’m excited for the next volume.
April 5, 2023
Good story but translation suffers
A solid continuation that suffers from an increase in typos and mistranslations compared to previous novels. Not sure what happened during editing here... But hopefully it'll improve in the future. Overall I still enjoyed the story so I guess it doesn't matter that much.
A solid continuation that suffers from an increase in typos and mistranslations compared to previous novels. Not sure what happened during editing here... But hopefully it'll improve in the future. Overall I still enjoyed the story so I guess it doesn't matter that much.
June 10, 2025
Loved it. 4 stars because of spelling issues in kindle version
There were a few spelling issues I found in the kindle version. Fist became first, I became you, and a few others here and there. You can figure out the correct word from context but it was still annoying.
Otherwise , really enjoyed the volume
There were a few spelling issues I found in the kindle version. Fist became first, I became you, and a few others here and there. You can figure out the correct word from context but it was still annoying.
Otherwise , really enjoyed the volume
April 1, 2024
I sped through this as I loved the cliffhanger in the previous volume.
BUUUUTTTTTTTTTT this is borderline a meh. While I enjoy the twists, with some are quite surprising and I can see new arc. But the rest gets boring. Like how many times do they must evolve?
BUUUUTTTTTTTTTT this is borderline a meh. While I enjoy the twists, with some are quite surprising and I can see new arc. But the rest gets boring. Like how many times do they must evolve?
April 19, 2025
Oh yeah, the conclusion to the battle between the Empire and Rimaru's crew. This was such an awesome read and conclusion to this particular arc. I am really looking forward to see where the series goes from here and I'm going to start on the next one right away.
May 13, 2025
9.9 Ahora ya entiendo más de esta historia, sospecho de Rimuru, el es la encarnación del primer dragón verdadero.
Es un análisis, llegue a esa conclusión cuando termine de leer este volumen y sobre el nuevo heroe ya lo sospechaba que eso iba a pasar y tenía razón 🥳🥳
Es un análisis, llegue a esa conclusión cuando termine de leer este volumen y sobre el nuevo heroe ya lo sospechaba que eso iba a pasar y tenía razón 🥳🥳
May 25, 2025
Oh my word
These are just so good. I really couldn't put it down. Although I had it wrong at first of who had Michael inside them. I honestly thought it was Yuuki at first, but I see that I was wrong.
These are just so good. I really couldn't put it down. Although I had it wrong at first of who had Michael inside them. I honestly thought it was Yuuki at first, but I see that I was wrong.
March 21, 2021
Quite action-packed and fun :- )
Some deaths are sad, so 4 stars, however.
Some deaths are sad, so 4 stars, however.
November 24, 2022
Great
Ceil is a stud, loved this volume. Cant wait for the next and to see how everything that happened in this one will affect the next
Ceil is a stud, loved this volume. Cant wait for the next and to see how everything that happened in this one will affect the next
November 27, 2022
Tour de Force
From the beginning to the end, battle after battle, extremely good read and answers to so many questions tying up lose ends.
From the beginning to the end, battle after battle, extremely good read and answers to so many questions tying up lose ends.
November 27, 2022
One of the best yet but you might need a pen and paper to keep up with all the info.
December 5, 2022
Absolutely fabulous!
January 10, 2023
Another great in a great series
The world's most O.P. slime in another great story that leaves you drooling for the next volume.
Can't wait for Volume 16!!!
The world's most O.P. slime in another great story that leaves you drooling for the next volume.
Can't wait for Volume 16!!!
October 14, 2024
Que buena novela.
September 12, 2025
They got ALIENS?! 🤯
This entire review has been hidden because of spoilers.
June 26, 2024
4/5 I haven’t read a volume of Tensura in about 2 years so I’m now 3 volumes behind after this one. I started this once last year read about 1/4th of it but got derailed by something else.
This volume pretty much wraps up the arc with Ludora and the Eastern Empire’s attack on Rimiru. This 400 page “light novel” is almost 100% battle driven. All of our big hitters are in play and we’re introduced to Ciel. Yet another cheat for our party of heroes. Pretty much everyone powers up yet again. In typical fashion things look grim for maybe 50 pages until our team goes super mega ultra over powered yet again and wipes the floor with the bad guys. The story itself is pretty convoluted considering this seams to happen every time.
But I still have fun with it I enjoy these characters and I’m just addicted to the world building and their antics even if we’re just rehashing overpowered battles. That being said there are too many damned characters we need a glossary at this point. Adding the demons was one thing I love Testarosa, Ultima, and Carrera but now we have whole segments of novel dedicated to their minions. It’s just too much to track.
But as long as I’m having fun I’ll keep reading them. I just keep a notepad open to keep track of who the hell everyone is.
This volume pretty much wraps up the arc with Ludora and the Eastern Empire’s attack on Rimiru. This 400 page “light novel” is almost 100% battle driven. All of our big hitters are in play and we’re introduced to Ciel. Yet another cheat for our party of heroes. Pretty much everyone powers up yet again. In typical fashion things look grim for maybe 50 pages until our team goes super mega ultra over powered yet again and wipes the floor with the bad guys. The story itself is pretty convoluted considering this seams to happen every time.
But I still have fun with it I enjoy these characters and I’m just addicted to the world building and their antics even if we’re just rehashing overpowered battles. That being said there are too many damned characters we need a glossary at this point. Adding the demons was one thing I love Testarosa, Ultima, and Carrera but now we have whole segments of novel dedicated to their minions. It’s just too much to track.
But as long as I’m having fun I’ll keep reading them. I just keep a notepad open to keep track of who the hell everyone is.
November 25, 2022
A religion is required
I have decided that in order to keep me sane when this series inevitably comes to an end that I will create a religion. After all, Rimuru is already my god. This was the largest and most dense volume, and to that, hats off to Fuse. I liked every bit of development in this volume and I am now ready for things to settle down a bit at least in the next. Good luck to you all, stay safe.
I have decided that in order to keep me sane when this series inevitably comes to an end that I will create a religion. After all, Rimuru is already my god. This was the largest and most dense volume, and to that, hats off to Fuse. I liked every bit of development in this volume and I am now ready for things to settle down a bit at least in the next. Good luck to you all, stay safe.
March 1, 2022
Puas sekali ya ampun. Volume saat manas Ciel lahir
November 27, 2022
Honestly more than a little unfair that one has to wait until so far deep into the book to see the payoff of the rage rimuru was feeling at the end of volume 14. But worth it.
January 27, 2023
Oh my god! I was really confused starting out because it doesn’t actually start how the last book finished but once I got pass that, everything was full steam ahead and it was a ride.
Displaying 1 - 30 of 30 reviews