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

Web series

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

7.8(242)20212 seasons · 24 episodes24m / ep
Animation
Comedy
Sci-Fi & Fantasy

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?!

Status
Ended
Type
Scripted
Last aired
2025-06-21
Language
Japanese
  • AT-X
  • witch
  • magic
  • slime
  • immortality
  • reincarnation
  • slice of life
  • anime
  • other world
  • sword and sorcery
  • isekai
  • based on light novel
  • gentle

Seasons

Top billed cast

Where to watch

All options

Availability for India. Provided by JustWatch through the TMDB API.

Gallery

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

Air dates

First aired
2021-04-10
Latest episode
2025-06-21
Status
Ended
Next release
Completed
  • Season 110 Apr 2021
  • Season 25 Apr 2025

Frequently asked questions

Where can I watch I've Been Killing Slimes for 300 Years and Maxed Out My Level?
Available on Crunchyroll, Crunchyroll Amazon Channel, Anime Times Amazon Channel in India — see the Where to watch section above.
How many seasons does I've Been Killing Slimes for 300 Years and Maxed Out My Level have?
2 seasons · 24 episodes · Ended.
What is the rating of I've Been Killing Slimes for 300 Years and Maxed Out My Level?
7.8/10 from 242 TMDB votes.

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