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

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

Japanese · 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

Created by Nobukage Kimura, Kunihisa Sugishima

2021–2025

After dying of overwork in the real world, I’m reincarnated as an immortal witch, and I spend 300 years enjoying a relaxing life. At some point, though, I end up at level 99! All those years spent killing slimes to make the money to pay the bills gave me a ton of experience points. Rumors of the level 99 witch spread, and soon I’m up to my ears in curious adventurers, duelist dragons, and even a monster girl calling me her mom! I’ve never been on an adventure, but I’m the strongest in the world… What’s going to happen to my relaxing life?!

First aired
10 Apr 2021
Episode length
24 min
Also known as
Slime Taoshite 300-nen, 持续狩猎史莱姆三百年，不知不觉就练到LV MAX, 打了三百年的史莱姆，不知不觉就练到了满等, 打了三百年的史莱姆，不知不觉就练到了满级
Country
Japan
Language
Japanese
Screenplay
Naohiro Fukushima
Writers
Naohiro Fukushima, Tatsuya Takahashi, Yutaka Yasunaga
Cinematography
Sota Mikami
Music
Keiji Inai
Editor
Hiroshi Okuda
Executive producers
Hitoshi Yagi, Seiji Miyazaki, Takahiro Yamanaka
Producers
Daichi Amano, Jun Morita, Mitsuhiro Nanbara and 8 others
Elsewhere
TMDB

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  • Animation
  • Comedy
  • Sci-Fi & Fantasy

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Cast

Seasons · 24 episodes

  • Season 1

    2021

    After many years of being a corporate slave, Azusa Aizawa abruptly passes away due to severe exhaustion. Seemingly headed for the afterlife, she meets a goddess who bestows her with immortality alongside a peaceful life in another world. There, Azusa enjoys her days tending to her farm, protecting the nearby village, and killing about 25 slimes per day—a routine that continues for at least three centuries. However, this rather monotonous cycle begins to change when Azusa suddenly finds out that she has reached level 99—the maximum possible level—from slimes alone. Despite desperately trying to hide this fact in fear of ending her slow life, rumors of her strength spread nevertheless. Soon enough, various people throughout the continent, start to appear at her doorstep—some seeking a battle, others asking for her assistance. Meeting friends and acquaintances who soon become family, Azusa finds she can live a life far better with others than when she was alone.

  • Season 2

    2025

    Get ready for more relaxing tales! Azusa Aizawa is a powerful witch who finally reached level 99 and now busies herself with laid-back quests instead. Her family continues to grow as some familiar faces are joined by bright-eyed newcomers. From trips to the beach to a martial arts tournament, you’re invited on Azusa’s carefree and heartwarming adventures of leisure.

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