I’ve Been Killing Slimes for 300 Years and Maxed Out My Level (Slime Taoshite 300-nen, Shiranai Uchi ni Level Max ni Nattemashita) season 2 is in the works. While the details are unknown, the Killing Slimes for 300 Years TV anime will most likely premiere in late 2022.
Whether you’re into isekai or not, I’d suggest looking into I’ve Been Killing Slimes for 300 Years and Maxed Out My Level. While the second season has only just been announced, the entire first season is available to watch on Crunchyroll!
Nobukage Kimura directed season 1 at studio Revoroot, with Emmanuel Pettini writing the script. Tatsuya Takahashi was responsible for the series composition, Satoshi Motoyama was the sound director and Keiji Inai composed the music.
The TV anime premiered on April 10, 2021. Following a 12 episode run, the show concluded on June 26, 2021.
The First Visual for Killing Slimes For 300 Years Season 2

Plot: 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?
– Crunchyroll Description
The TV anime is based on Kisetsu Morita‘s light novel series of the same name, with art by Benio. It began serialization on January 14, 2017.
Please visit the official website for I’ve Been Killing Slimes for 300 Years and Maxed Out My Level for more!