Ratings

TMDB Rating 7.9
IMDB Rating 7.1

Series Details

Seasons: 2

Total Episodes: 24

Creators:

Networks: AT-X

Status: Ended

First Air Date: Apr 10, 2021

Recent Air Date: Jun 21, 2025

Run Time: m

In Production: No

Original Language: Japanese

Age Rating: TV-14

Website: Link

Production Companies: REVOROOT , Nippon Columbia , Hakuhodo DY Music & Pictures , BS11 , STUDIO MAUSU , AT-X , THE KLOCKWORX , movic , DMM GAMES , Bushiroad , Medicos Entertainment , Square Enix , SB Creative

Sources:


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

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Synopsis

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?!


Main Cast

Aoi Yuki

Aoi Yuki

Azusa (voice)

Age : N/A | Popularity : 11%

Kaede Hondo

Kaede Hondo

Laika (voice)

Age : N/A | Popularity : 12%

Sayaka Senbongi

Sayaka Senbongi

Falfa (voice)

Age : N/A | Popularity : 10%

Minami Tanaka

Minami Tanaka

Shalsha (voice)

Age : N/A | Popularity : 4%

Sayaka Harada

Sayaka Harada

Halkara (voice)

Age : N/A | Popularity : 5%

Manami Numakura

Manami Numakura

Beelzebub (voice)

Age : N/A | Popularity : 19%

Riho Sugiyama

Riho Sugiyama

Rosary (voice)

Age : N/A | Popularity : 4%

Azumi Waki

Azumi Waki

Fratorte (voice)

Age : N/A | Popularity : 4%


Seasons

Season 1

Season 1

2021 | 12 episodes

No Synopsis For This Season Yet.


Crew

Department Role Name
Sound Theme Song Performance
Original Music Composer
Directing Series Director
Writing Series Composition
Novel
Visual Effects Character Designer
Art Original Series Design
Department Role Name

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