Dungeon Encroachment 「迷宮侵蝕, meikyū shinshoku」 is the twenty-first light novel volume of the That Time I Got Reincarnated as a Slime series.
Synopsis[]
Rimuru’s disappearance struck the land of Tempest like a violent tremor, but this time, the monsters leading their government quickly regained their cool. They know for certain that Rimuru is still alive, and if they returned to find their nation wrecked, there would be hell to pay. For now, they must deal with the problems in front of them…and so Benimaru shifts his focus to the force of angels led by Dino. They’re invading the labyrinth, and Vega’s corrosive abilities have made them a worrisome threat indeed—that is, until two pillars of the dark stand before them…[1]
Chapters[]
- Prologue: Decisive Moments 「決意の時, ketsui no toki」
- Chapter 1: A Dying Capital 「滅びゆく都, horobiyuku to」
- Interlude: The Insect Lord 「蟲の王, mushi no ō」
- Chapter 2: Dungeon Encroachment 「迷宮侵蝕, meikyū shinshoku」
- Chapter 3: The Parent and the Child 「親と子, oya to ko」
- Chapter 4: Beyond Delusion 「妄執の彼方, mōshū no kanata」
- Epilogue: The Point of No Return 「終焉の先, shūen no saki」
Illustrations[]
Afterword[]
Thanks for your patience! Volume 21 is here.I hope that all of you enjoyed this installment, but I always get the most nervous the moment I deliver a new piece of work like this. I, my editor, said this to me upon reading the completed manuscript:“There’s no way this is gonna end in the next volume, is there?”My response was totally curt. It was far too early, I said, to give up on that!“You’re the only person who hasn’t given up on it, Fuse.”That was what my editor had to say. I’s penchant for sharp retorts like that had recently earned them the nickname “Razor I.” I keep hearing voices that I’m the only one who uses that nickname, but I’m sure it’s all in my head.Sugi-P, producer of the anime, sent me his own message after reading this volume, saying, “No way you’re gonna finish this in the next volume!” Phrasing it as an exclamation instead of a question left quite an impression on me.But good heavens, what are all these people saying? I just couldn’t understand any of it. And yet…once I wrote down a list of the remaining events left to cover…that one, and that one, and that one, and…hmmmm.Hang on… I think the winds are changing direction on me.But hey, if it’s the final volume anyway, we could always end up making it really thick, right? That, or if we do a Volume 22, Part 1/Volume 22, Part 2 sort of thing, maybe I could wrap this up in the next volume after all. Besides, some series make the last volume a three-parter and then move straight on to the Final Chapter, Volume 1, after that. There are tons of ways I could do this!All joking aside, though, I really do want to finish this up in the next volume…but calculating backward from the number of events left to cover, I can’t deny the possibility that there’ll be a bit more text than usual. If I’m calling it the “final volume,” I certainly can’t leave any stones unturned; I want to get it all written down in one go.So I guess I’ll just think about it after I’m done writing, then! I can’t promise whether the next volume will be a single book or not, but I’ll do my best to finish things up in the next go-around. From now on, I want to try and create the best possible plan for the story’s conclusion, and I’ll also try to craft a volume that everyone can enjoy while I’m at it.Thanks for supporting me up to the end! I’ll see you all in the next installment!!
Fuse[3]References[]
- ↑ Yen Press synopsis, edited
- ↑ Fuse's Activity Report
- ↑ Official translation













![LN 21 - Female Charys' Draft.png (257 KB) Initial Draft from Mitz Vah before revised.[2]](https://static.wikia.nocookie.net/tensei-shitara-slime-datta-ken/images/4/40/LN_21_-_Female_Charys%27_Draft.png/revision/latest/scale-to-width-down/128?cb=20250926013043)