Series

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

2021 · 2 seasons · Animation · Comedy · Sci-Fi & Fantasy

IMDb

6.3

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?!

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)

• Kisetsu MoritaNovel
• Keiji InaiOriginal Music Composer

Trailer [Subtitled]

First aired

April 10, 2021

Last aired

June 21, 2025

Status

Ended

Original language

Japanese

Episodes

24

Rated

TV-14

Genres

Animation, Comedy, Sci-Fi & Fantasy

• 
  Season 112 episodes · 2021
• 
  Season 212 episodes · 2025

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