Crunchyroll
Anime Times
★ 7.7 TV Series
Miss Kobayashi's Dragon Maid
I've Been Killing Slimes for 300 Years and Maxed Out My Level
Slime Taoshite 300-nen, Shiranai Uchi ni Level MAX ni Nattemashita · 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
An at-home comedy about a powerful girl who doesn’t work too hard!(⋈◍ ˃ᴗ˂ ◍)。✧♡ 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… Read more
Storyline
An at-home comedy about a powerful girl who doesn’t work too hard!(⋈◍ ˃ᴗ˂ ◍)。✧♡ 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! “This isn’t a dojo, so don’t come here to fight me…!” I’ve never been on an adventure, but I’m the strongest in the world… What’s going to happen to my relaxing life?! (Source: Crunchyroll)
Trailer
Characters & Japanese Voice Cast
Azusa Aizawa
Main
VA: Aoi Yuuki 
Beelzebub
Main
VA: Manami Numakura 
Laika
Main
VA: Kaede Hondo 
Flatorte
Main
VA: Azumi Waki 
Falfa
Main
VA: Sayaka Senbongi 
Halkara
Main
VA: Sayaka Harada 
Shalsha
Main
VA: Minami Tanaka 
Rosalie
Main
VA: Riho Sugiyama 
Provat Allières
Supporting
VA: Yukari Tamura 
Vania
Supporting
VA: Ari Ozawa 
Fatla
Supporting
VA: Miku Itou 
Kuku
Supporting
VA: Kotori Koiwai Seasons & Related Anime
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Frequently Asked Questions
Where can I watch I've Been Killing Slimes for 300 Years and Maxed Out My Level in India?
I've Been Killing Slimes for 300 Years and Maxed Out My Level is available in India on Crunchyroll, Anime Times. Availability can differ by season and changes over time.
How many episodes does I've Been Killing Slimes for 300 Years and Maxed Out My Level have?
I've Been Killing Slimes for 300 Years and Maxed Out My Level has 12 episodes.
Which studio made 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 is produced by REVOROOT.
Facts from AniList (also listed on MyAnimeList); streaming availability from JustWatch India. Last updated 17 October 2026, 4:39 AM IST. Episode times are Japan broadcast times shown in IST. Spotted a mistake? Write to [email protected].