I’ve Been Killing Slimes for 300 Years and Maxed Out My Level is a Fantasy manga written by Morita Kisetsu and art for manga is by Benio. The manga began publishing on 14 January 2017 and has been collected into 7 volumes.
In an event in 2019 I’ve Been Killing Slimes for 300 Years anime adaptation was announced for the manga with audio drama voice actors reprising their roles. In an recent announcment 2 New key visual and a trailer has been released. You can check them below
I’ve Been Killing Slimes for 300 Years anime Release Date
I’ve Been Killing Slimes for 300 Years anime will be released in Spring 2021. The spring season starts from April 2021 so we can expext a april release for the anime. The director for the anime series is Kimura Nobukage and the studio is REVOROOT which animated Babylon anime last year.
Manga tells a story about a saleswoman Azusa Aizawa who suddenly died from overwork and then wakes up in front of an angel. Angel allows her to reincarnate in a magical world as an immortal witch. The work she has to do in this world is killing slimes or on vacation. She notices that after killing slimes for hundred of years, she has reached her maximum power level.
After gaining so much power she fears that she will be sent back to the real life so she decides to hide the power from others to lead a peaceful life. But despite her trying to hide tales of “Witch of the Plateau” spreads all over the world. A mighty dragon Raika comes to find her to test her strength. Azusa defeats Raika and they become friends and their adventure starts from here of fighting witches.