I've Been Killing Slimes for 300 Years Manga Ends With 19th Volume
The manga's end follows the light novel's conclusion, closing out the main series across both formats within the same year.
Key Facts
- The I've Been Killing Slimes for 300 Years and Maxed Out My Level manga will end with its 19th compiled volume.
- The 18th manga volume, which revealed the ending, shipped on Monday.
- The light novel's 30th and final volume shipped on June 15.
- The manga has been serialized on Square Enix's Gangan Online website since June 2017.
- The anime's second season premiered in April 2025.
Reporting from 2 sources: Anime News Network, Anime Corner.
The manga adaptation of Kisetsu Morita's I've Been Killing Slimes for 300 Years and Maxed Out My Level light novel will conclude with its 19th compiled volume, as revealed in the 18th volume released on Monday. Yusuke Shiba illustrates the manga, which has run on Square Enix's Gangan Online website since June 2017. The 18th volume shipped on Monday, and the 19th will be the final one. The light novel series, which Morita self-published on the Shosetsuka ni Naro website in June 2016 before SB Creative picked it up for print under its GA Novel imprint, is also ending. The 30th and final novel volume shipped on June 15, and Anime Corner reports it will conclude this October. The franchise has inspired a television anime: the first season premiered in April 2021, and the second in April 2025. Crunchyroll streamed both seasons, including an English dub for the first. The novel series ranked at #9 in the 2019 edition of the Kono Light Novel ga Sugoi! guidebook. Yen Press publishes the light novel and manga in English.
The 18th volume of the I've Been Killing Slimes for 300 Years and Maxed Out My Level manga, released on Monday, carried the announcement that the next volume will be the last. The manga, illustrated by Yusuke Shiba, has been serialized on Square Enix's Gangan Online website and app since June 2017. The light novel, written by Kisetsu Morita with illustrations by Benio, began as a self-published web novel on Shosetsuka ni Naro in June 2016 before SB Creative began publishing it in print in 2017.
The light novel's 30th and final volume shipped on June 15, with Anime Corner noting it will conclude this October. Morita has also written several spin-off light novels with different illustrators, including I Was a Bottom-Tier Bureaucrat for 1,500 Years, and the Demon King Made Me a Minister and Red Dragon's Women Academy, both of which received manga adaptations. The anime adaptation was produced by Studio Revoroot for the first season and Studio Teddy for the second, with Crunchyroll streaming both seasons.
Synthesized by Yomimono from the 2 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.