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

Basic Info

First Air: April 10, 2021

Rating: ⭐ 7.9/10 (226 votes)

Status: Ended

Seasons & Episodes

Seasons: 2

Episodes: 24

Last Episode

Name: We Opened the Coffee Shop Again This Year

Season: 2, Episode: 12

Air Date: 2025-06-21

Runtime: 24 min

It's time for Flatta's annual dance festival again, and The Witch's House makes its long-awaited return.

Videos

Trailer [Subtitled] (YouTube)

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

2021 2 seasons 24 episodes ⭐ 7.9/10 226 votes

Overview

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?!