I've Been Killing Slimes for 300 Years and Maxed Out My Level

Slime Taoshite 300-nen, Shiranai Uchi ni Level MAX ni Nattemashita
スライム倒して300年、知らないうちにレベルMAXになってました
ko
슬라임을 잡으면서 300년, 모르는 사이에 레벨MAX가 되었습니다 (official)

Adaptation

manga
2017
Publishers:
and 1 more
From corporate slave to a laid-back witch—reincarnation’s a pretty sweet deal! Or so Azusa believes until her maxed-out status comes to light… In this new manga adaptation of the original novel, enjoy the hilarity that ensues as Azusa attempts to evade all forms of adventure and regain her lazy life! *Source: Yen Press, Vol. 1*

Side Story

novel
2019
Publishers:
Public Service x 1,500 Years + Pecora’s Magic = Minister of Agriculture A DEVIL’S WORK IS NEVER DONE! Beelzebub is a demon of many roles-minister of agriculture, Azusa’s “big sister and the demon king’s closest confidant. Before her illustrious rise to power, though, she was just a low-ranking pencil pusher in the government with no ambitions, no dreams, and no adventure in her life. Then, on a whim of the newly coronated demon king, she received the biggest and most terrifying promotion imaginable! How will Beelzebub handle the sudden responsibilities of the entire Ministry of Agriculture?! Originally published as short stories in the hugely popular I’ve Been Killing Slimes for 300 Years and Maxed Out My Level, the spin-off is back with brand-new illustrations and additional tales from the demon lands! *Source: Yen Press*

Spin-off

manga
2021
Publishers:
Challenge, victory, growth! To become the strongest dragon and surpass her older sister, Laika starts attending an elite academy for dragon‐girls. However, even though it is only the first day, she has somehow managed to find all kinds of trouble… *Source: Yen Press, Vol. 1*