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

202124m / epAnimation · Comedy · Sci-Fi & Fantasy

First aired

April 10, 2021

7.8

TMDB Score

78% match · 244 votes

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S01 · E07

We Beat Up a Demon King

Season 1 · May 22, 2021 · 24m

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E01▶

I Maxed Out My Level

Apr 10, 2021 · 24m

E02▶

Along Came the Daughters

Apr 17, 2021 · 24m

E03▶

Along Came an Elf

Apr 24, 2021 · 24m

E04▶

We Went to a Dragon's Wedding

May 1, 2021 · 24m

E05▶

A Ghost Appeared

May 8, 2021 · 24m

E06▶

Along Came a Leviathan

May 15, 2021 · 24m

E07Playing

We Beat Up a Demon King

May 22, 2021 · 24m

E08▶

A Fake Witch of the Highlands Appeared

May 29, 2021 · 24m

E09▶

My Daughter Turned Into a Slime and Couldn't Change Back

Jun 5, 2021 · 24m

E10▶

A Minstrel Came to Town

Jun 12, 2021 · 24m

E11▶

I Ate a Mushroom and Turned Into a Child

Jun 19, 2021 · 24m

E12▶

We Opened a Coffee Shop

Jun 26, 2021 · 24m

Halkara's knack for inadvertently causing trouble led her to knock out the Demon King Pecora, and now she's locked in a dungeon. As Halkara's execution draws nearer with each passing moment, Azusa rushes to make a potion with her family's help and, with Beelzebub's guidance, takes it to the first-aid room where Pecora is. After tricking the demons guarding the room, Azusa finally reaches Pecora, but then...

About the Series

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

AnimationComedySci-Fi & Fantasy

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?!

First aired: April 10, 2021
Last aired: June 21, 2025
Seasons: 2 seasons · 24 episodes
Status: Ended
Original language: Japanese
Network: AT-X