Episode 1
Along Came a Goddess
24m6.7 / 10
Azusa learns that a goddess is making a public appearance in the provincial capital and goes to check it out.
Episode credits
Directed by Toshiaki KanbaraWritten by Naohiro Fukushima
TV series
I've Been Killing Slimes for 300 Years and Maxed Out My Level
2021TV-142 seasons7.8 / 10
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?!
Streaming, rental and purchase options
Where to watch in United States
Checked Jul 22, 2026
I've Been Killing Slimes for 300 Years and Maxed Out My Level is available to stream on Crunchyroll Premium (Via Amazon Prime) in United States. You can also buy it from Amazon and Apple TV. Use the direct links below to open the provider.
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?!
Season 2 episodes
Choose an episode, then use the watch options above for the show.
Where to watch I've Been Killing Slimes for 300 Years and Maxed Out My Level
Episode 2
We Searched for an Undead
24m6.3 / 10
Azusa takes Falfa and Shalsha to the World Spirit Conference. When they return, Beelzebub asks for a favor.
Where to watch I've Been Killing Slimes for 300 Years and Maxed Out My Level
Episode 3
We Went to Beelzebub's House
24m6.0 / 10
When Beelzebub brags about her huge mansion, Azusa can't resist paying a visit to see it for herself.
Where to watch I've Been Killing Slimes for 300 Years and Maxed Out My Level
Episode 4
We Went Looking for a Mandragora
24m6.3 / 10
Azusa learns that mandragoras gain the ability to walk and talk after 300 years, so she goes to find one.
Where to watch I've Been Killing Slimes for 300 Years and Maxed Out My Level
Episode 5
I Became Mama Yufufu's Daughter
24m6.7 / 10
After Azusa eats a mushroom that makes her shrink, Yufufu ofers to be her mom for the day.
Where to watch I've Been Killing Slimes for 300 Years and Maxed Out My Level
Episode 6
Laika Entered a Martial Arts Tournament
24m6.5 / 10
Laika enters a martial arts tournament to help Fightie, who's hoping to win the prize money.
Where to watch I've Been Killing Slimes for 300 Years and Maxed Out My Level
Episode 7
I Met a Pine Spirit
24m6.5 / 10
Azusa tries to help a pine spirit whose temple has fallen on hard times due to a decrease in weddings.
Where to watch I've Been Killing Slimes for 300 Years and Maxed Out My Level
Episode 8
We Went Swimming in the Sea
24m6.5 / 10
Azusa takes her family to the ocean, where they meet a jellyfish spirit who also happens to be a painter.
Where to watch I've Been Killing Slimes for 300 Years and Maxed Out My Level
Episode 9
We Met the Evil Spirit Queen
24m6.0 / 10
Azusa and company try to get the queen of Thursa Thursa to come out of her tomb and rejoin her people.
Where to watch I've Been Killing Slimes for 300 Years and Maxed Out My Level
Episode 10
We Went to the Demon King's Birthday Party
24m6.5 / 10
Pecora hosts a grand birthday party, but the only gift she wants is a day alone with Azusa.
Where to watch I've Been Killing Slimes for 300 Years and Maxed Out My Level
Episode 11
I Battled a Traditional Goddess
24m6.5 / 10
Mega-mega has caught the eye of Nintan, a goddess who favors tradition and rejects new ideas.
Where to watch I've Been Killing Slimes for 300 Years and Maxed Out My Level
Episode 12
We Opened the Coffee Shop Again This Year
24m6.5 / 10finale
It's time for Flatta's annual dance festival again, and The Witch's House makes its long-awaited return.
Where to watch I've Been Killing Slimes for 300 Years and Maxed Out My LevelEpisode information updated Jul 23, 2026
More about I've Been Killing Slimes for 300 Years and Maxed Out My Level
Cast
Aoi YuukiAzusa (voice)
Kaede HondoLaika (voice)
Sayaka SenbongiFalfa (voice)
Minami TanakaShalsha (voice)
Sayaka HaradaHalkara (voice)
Manami NumakuraBeelzebub (voice)
Riho SugiyamaRosary (voice)
Azumi WakiFratorte (voice)Credits
- Written by
- Yutaka Yasunaga, Tatsuya Takahashi, Naohiro Fukushima, Naohiro Fukushima, Kisetsu Morita
Production details
- Status
- Ended
- Series type
- Scripted
- Episodes
- 24
- Original language
- Japanese
- Original title
- 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
Networks & production
AT-XJapan
REVOROOTJapan
Nippon ColumbiaJapan
Hakuhodo DY Music & PicturesJapan
BS11Japan
STUDIO MAUSUJapan
Themes
animebased on light novelgentleimmortalityisekaimagicother worldreincarnation
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