The 18th volume of the I’ve Been Killing Slimes for 300 Years and Maxed Out My Level manga has confirmed that the next volume will wrap up the series. Yusuke Shiba provides the illustrations for the manga, which draws from the light novel by Kisetsu Morita and Benio. Since June 2017, Square Enix has been serializing the manga through their Gangan Online website and app.

I’ve Been Killing Slimes for 300 Years and Maxed Out My Level Franchise Details
Kisetsu Morita self-published Suraimu Taoshite Sanbyaku-nen, Shiranai Uchi ni Reberu Makkusu ni Nattemashita on Shosetsuka ni Naro in 2016. SB Creative took over the series and began distributing it in print in 2017 under their GA Novel label, featuring illustrations by Benio. The publisher has released 29 volumes of the light novel. Yen Press handles the English publication of both the light novel and manga.
The I’ve Been Killing Slimes for 300 Years light novel series will conclude with its 30th volume this October.
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Kisetsu Morita has produced several spin-off light novels illustrated by various artists:
- I Was a Bottom-Tier Bureaucrat for 1,500 Years, and the Demon King Made Me a Minister (Art by Meishi Murakami).
- Food for an Elf
- Red Dragon’s Women Academy (Art by Hitsujibako)
- The White Journey of Margrave
Both Red Dragon’s Women Academy and I Was a Bottom-tier Bureaucrat have received manga adaptations by their respective illustrators.
Studio Revoroot and Studio Teddy brought I’ve Been Killing Slimes for 300 Years to the TV anime format. Revoroot produced the first season, while Studio Teddy handled the second. Crunchyroll streams both seasons of the anime.
Synopsis
What comes from toiling endlessly and serving the grind? If you’re Azusa Aizawa, it leads to an early death. However, unlike most, when Azusa passes away, she gets reincarnated in another realm! A kind deity took pity on Azusa’s earthly struggles and whisked her away to a magical world. Best of all, she is granted immortality and is placed in a youthful 17-year-old body.
With this new lease on life, Azusa spends 300 years defeating slimes and leading a cozy existence in the highlands of her new home. Yet, killing those slimes without realizing it boosts her skills to extraordinary levels! Despite her formidable abilities, Azusa is committed to the peaceful life she has always desired. No matter whether dragons, elves, slime spirits, or specters try to disrupt Azusa’s serene lifestyle, she welcomes them into her abode and demonstrates how delightful life can truly be!
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Source: I’ve Been Killing Slimes for 300 Years and Maxed Out My Level manga
© Kisetsu Morita • Yusuke Shiba / Square Enix



