I’ve Been Killing Slimes for 300 Years and Maxed Out My Level Unveils Updated Teaser Visual

An updated key visual has been released for the upcoming second season of I’ve Been Killing Slimes for 300 Years and Maxed Out My Level, featuring the devious Beelzebub in the background. The TV anime series will debut in Japan sometime in 2025

i've been killing slimes season 2 beelzebub key visual i've been killing slimes season 2 beelzebub key visual
© Kisetsu Morita/​SB Creative Corp./​slime300 project2

Kunihisa Sugishima (Battle Spirits: Shounen Toppa Bashin) is directing the second season, with Naohiro Fukushima (My Isekai Life: I Gained a Second Character Class and Became the Strongest Sage in the World!) as series screenwriter, Hikaru Kodama (Doctor Elise: The Royal Lady with the Lamp sub-character designer) as character designer, and Keiji Inai returning as music composer. Teddy takes over as the main animation production company from Revoroot

Meanwhile, the returning voice cast of I’ve Been Killing Slimes for 300 Years and Maxed Out My Level is headlined by: 

  • • Aoi Yuuki as Azusa
  • • Kaede Hondo as Laika
  • • Sayaka Senbongi as Falfa
  • • Minami Tanaka as Shalsha
  • • Sayaka Harada as Halkara
  • • Manami Numakura as Beelzebub
  • • Azumi Waki as Fratorte
  • • Riho Sugiyama as Rosalie
  • • Yukari Tamura as Pecora

The anime adapts the isekai fantasy light novel series, written by Kisetsu Morita and illustrated by Benio. It was first published under SB Creative’s GA Novel label on January 14, 2017 and has released 24 volumes as of November 2023. It began as a web novel published by Morita on the Shosetsuka ni Naro website in June 2016. 

A manga adaptation by Yusuke Shiba began in December 2018, and has also inspired multiple spin-offs.

I've Been Killing Slimes for 300 Years and Maxed Out My Level season two announcement visualI've Been Killing Slimes for 300 Years and Maxed Out My Level season two announcement visual
© Kisetsu Morita/​SB Creative Corp./​slime300 project2

Crunchyroll streamed the anime’s first season, which aired in Japan from April 2021 to June 2021. It describes the main synopsis as:

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?! 


Source: I’ve Been Killing Slimes for 300 Years and Maxed Out My Level Official Twitter