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?!
Currently, you can only stream I've Been Killing Slimes for 300 Years and Maxed Out My Level on CrunchyRoll in the UK.
Unfortunately, you cannot buy or rent I've Been Killing Slimes for 300 Years and Maxed Out My Level on any of the streaming services in the UK at the moment.
The first season of I've Been Killing Slimes for 300 Years and Maxed Out My Level was released in 2021.
There is currently one season of I've Been Killing Slimes for 300 Years and Maxed Out My Level, which was released in 2021.
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