I've Been Killing Slimes for 300 Years

I've Been Killing Slimes for 300 Years and Maxed Out My Level is a 2021 anime based on the light novel series by Kisetsu Morita. It premiered in Japan on April 10, 2021. Crunchyroll is producing an English dub of the series, which will premiere on its streaming service on May 29, 2021.