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

I've Been Killing Slimes for 300 Years and Maxed Out My Level (2021)

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?!

star 7.9 6.4
  • First Air Date: 2021-04-10
  • Last Air Date: 2025-05-31
  • Total Seasons: 2
  • Total Episodes: 24
  • Episode Runtime: 24 min.
  • Network: AT-X

Where to Watch I've Been Killing Slimes for 300 Years and Maxed Out My Level Online

You can now watch I've Been Killing Slimes for 300 Years and Maxed Out My Level online on the following streaming providers in the United States.


    • Seasons

    • Season 1

      12 Episodes

    • Season 2

      12 Episodes

    Trailer

    Cast

    • Aoi Yuuki

      Azusa (voice)

    • Kaede Hondo

      Laika (voice)

    • Sayaka Senbongi

      Falfa (voice)

    • Minami Tanaka

      Shalsha (voice)

    • Sayaka Harada

      Halkara (voice)

    • Manami Numakura

      Beelzebub (voice)

    • Riho Sugiyama

      Rosary (voice)

    • Azumi Waki

      Fratorte (voice)

    • Yukari Tamura

      Pecora (voice)

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