I've Been Killing Slimes for 300 Years and Maxed Out My Level – Fan Merchandise for the Cosy Isekai
Most isekai protagonists rush to defeat demon lords or save kingdoms. Azusa just wanted a nap and maybe some tea. That her 300-year routine of slime-slaying accidentally made her the strongest witch alive is entirely beside the point – she's still not taking quests, thank you very much. At Elbenwald, we stock merchandise for fans who appreciate that sometimes the real treasure is refusing to be a hero.
What defines I've Been Killing Slimes for 300 Years and Maxed Out My Level?
I've Been Killing Slimes for 300 Years and Maxed Out My Level is a light novel series written by Kisetsu Morita, first published by GA Novel on 14 January 2017. The story belongs to the isekai genre, following protagonist Azusa Aizawa, a Japanese office worker who dies from overwork and is reincarnated as an immortal witch in a fantasy world. Determined to avoid her previous stressful existence, she adopts a peaceful rural lifestyle, defeating only a handful of slimes each day. After 300 years, these small victories accumulate to make her the world's most powerful being – attracting unwanted attention from dragon girls, demon lords, and various magical creatures who become her found family. The series has been adapted into an anime television series spanning two seasons and 24 episodes, with a role-playing video game scheduled for release on 11 July 2025 by CTW INC.
Frequently asked questions
What is the premise of I've Been Killing Slimes for 300 Years?
The series follows Azusa, an immortal witch who spent 300 years living peacefully and defeating low-level slimes daily. This routine inadvertently maxed out her level, making her the strongest being in the world and attracting a chaotic household of magical visitors.
How many anime seasons exist?
The anime adaptation currently comprises two seasons with a total of 24 episodes, adapting the light novel source material by Kisetsu Morita.
Is there a video game adaptation?
Yes, a role-playing video game based on the series is scheduled for release on 11 July 2025, published by CTW INC.
Assortment overview
Our I've Been Killing Slimes for 300 Years and Maxed Out My Level collection features merchandise celebrating Azusa and her found family of dragons, spirits, and slimes. Browse the full range to find fan articles from this beloved isekai series – whether you've followed Azusa's peaceful adventures through the light novels or discovered her through the anime adaptation.
What goes well with this?
Fans of cosy isekai stories with overpowered protagonists who just want a quiet life might enjoy exploring other anime and fantasy merchandise at Elbenwald. Our shop carries fan articles from across the isekai genre – because sometimes you need merchandise that matches your "defeated the demon lord, still made it home for dinner" energy.