Slime Taoshite 300 Nen Wiki
Slime Taoshite 300 Nen Wiki

The anime adaptation of I've Been Killing Slimes For 300 Years And Maxed Out My Level was confirmed in October 2019. The voice acting cast for the CD Drama will reprise their roles. The anime premiered on April 10th, 2021 and ended on June 26th, 2021.





  • Director: Nobukage Kimura
  • Series composition: Tatsuya Takahashi
  • Character design: Keisuke Goto
  • Character design (Sub character): Emi Honda
  • Music: Keiji Inai
  • Studio: REVOROOT
  • Director of Photography: Souta Mimakami
  • Original Creator: Kisetsu Morita
  • Art director: Ken Naitou
  • Color Design: Satoshi Takezawa
  • Sound Director: Satoshi Motoyama
  • Sound Production: Studio Mausu
  • Music Production: Nippon Columbia


  • Opening Theme: gudafuwa everyday[1]
  • Ending Theme: Viewtiful Days![2]
    • Lyricist: Ryuji Sakai
    • Composer, Arranger: Yousuke Mochida
    • Artist: Flatorte (Azumi Waki)


# Episode Name Japanese Air Date English Air Date
1 I Maxed Out My Level
(レベルMAXになっていた, Reberu Makkusu ni Natteita)
April 10th, 2021 May 29th, 2021
2 Along Came the Girl
(娘が来た, Musume ga Kita)
April 17th, 2021 June 5th, 2021
3 Along Came an Elf
(エルフが来た, Erufu ga Kita)
April 24th, 2021 June 12th, 2021
4 We Went to a Dragon's Wedding
(ドラゴンの結婚式に行った, Doragon no Kekkonshiki ni Itta)
May 1st, 2021 June 19th, 2021
5 A Ghost Appeared
(幽霊が出た, Yūrei ga Deta)
May 8th, 2021 June 26th, 2021
6 Along Came a Leviathan
(リヴァイアサンが来た, Rivaiasan ga Kita)
May 15th, 2021 July 3rd, 2021
7 We Beat Up a Demon King
(魔王を倒しちゃった, Maō o Taoshichatta)
May 22nd, 2021 July 10th, 2021
8 A Fake Witch of the Highlands Appeared
(高原の魔女の偽物が出た, Kōgen no Majo no Nisemono ga Deta)
May 29th, 2021 July 17th, 2021
9 My Daughter Turned Into a Slime and Couldn't Change Back
(娘がスライムから戻れなくなった, Musume ga Suraimu kara Modorenaku Natta)
June 5th, 2021 July 24th, 2021
10 A Minstrel Came to Town
(吟遊詩人が来た, Ginyūshijin ga Kita)
June 12th, 2021 July 31st, 2021
11 I Ate a Mushroom and Turned Into a Child
(キノコを食べて子供になった, Kinoko o Tabete Kodomo ni Natta)
June 19th, 2021
12 We Opened a Coffee Shop
(喫茶店を開いた, Kissaten o Hiraita)
June 26th, 2021


Key Visuals[]

Blu-ray Volumes[]

Promotional Scans[]

Promotional Videos[]



External Links[]