TV series

I've Been Killing Slimes for 300 Years and Maxed Out My Level

Original title: スライム倒して300年、知らないうちにレベルMAXになってました

2021 · Ended

Overview

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?!

Cast

Open an episode for ages at its air date.

Aoi YukiAzusa (voice)

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Kaede HondoLaika (voice)

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Sayaka SenbongiFalfa (voice)

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Minami TanakaShalsha (voice)

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Sayaka HaradaHalkara (voice)

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Manami NumakuraBeelzebub (voice)

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Riho SugiyamaRosary (voice)

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Azumi WakiFratorte (voice)

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Yukari TamuraPecora (voice)

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Sakura NakamuraCoffee Shop Customer (voice), Employee B / Effect Voice (voice), Effect Voice (voice), Villager D / Effect Voice (voice), Leila / Effect Voice (voice), Magician / Voice Effect (voice), Announcement Voice / Effect Voice (voice), Voice Effect (voice)

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Shinya TakahashiErnst (voice), Villager A (voice), Asmodian Executive B (voice), Villager B (voice), Referee (voice), Blue Dragon B (voice)

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Ari OzawaVania (voice)

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Full cast · 62

Sayaka KikuchiNatalie Jr. (voice)

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Miku ItoFatla (voice)

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Akihiro MineStore Customer C (voice), "Saeta Taka" Master (voice), Blue Dragon A (voice)

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Kouhei YanagiAsmodian Executive A (voice), Asmodian B (voice), Swordfighter (voice)

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Hikaru TonoEno (voice)

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Ryo SugisakiLeila's Father (voice), Village Mayor (voice)

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Aya KawakamiVillager A (voice), "Saeta Taka" Landlady (voice)

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Jun FukazawaVillager B (voice), Asmodian A (voice)

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Saki SuzukiLeila's Mother (voice), Employee A (voice)

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Sousuke ShimokawaLeila's Husband (voice), Villager D (voice)

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Ayasa ItoFighsly (voice)

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Kotori KoiwaiKuku (voice)

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Kikuko InoueGoodly Godly Godness (voice)

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Eri YukimuraNatalie Sr. (voice)

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Shunsuke TodoWarrior (voice)

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Yuko NatsuyoshiMonk (voice)

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Ikuto KanemasaVillager A (voice)

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Kanako YanagiharaVillager C (voice)

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Tomohiro OmachiVillager D (voice)

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Akihisa WakayamaVillager A (voice)

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Yuki TamaiVillager B (voice)

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Hina TachibanaRed Dragon A (voice)

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Rina TakatsukiRed Dragon B (voice)

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Minami HinataBlue Dragon C (voice)

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Kaito MuroiBlue Dragon D (voice)

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Shogo SakataVillager C (voice)

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Hitoshi BifuScholar (voice)

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Masaya SakaiAsmodian Executive C (voice)

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Misa Kobayashi"Omae Yori Butanohōga Yakuni Tatsuyo" Clerk

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Masaaki IharaStore Customer A (voice)

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Yukihiro NozuyamaStore Customer B (voice)

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Takashi AkaishiStore Customer D (voice)

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Koji SekiStore Customer E (voice)

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Miyuri ShimabukuroMagie (voice)

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Kanato WataiSkinhead A (voice)

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Kazuki MiyagiSkinhead B (voice)

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Taiki TeraiAudience A (voice)

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Haruto ShindoAudience B (voice)

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Saiko MoriyaVillager B (voice)

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Katsuyuki MiuraVillager C (voice)

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Yuna OgataVillager E (voice)

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Natsumi HiokaDrugstore Owner (voice)

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Kouichi SoumaWorld Tree Beast (voice)

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Shunsuke KanieWorld Tree Beast (voice)

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Shinsuke SugawaraWorld Tree Beast (voice)

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Yu WakabayashiCoffee Shop Customer (voice)

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Hana ShimanoCoffee Shop Customer (voice)

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Keito MatsumuraCoffee Shop Customer (voice)

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Rie KawamuraCoffee Shop Customer (voice)

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Kohei YoshiwaraCoffee Shop Customer (voice)

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TMDB ID: 99073 ↗
First aired: 2021-04-10
Last aired: 2025-06-21
Status: Ended
Episode runtime: 24 min
Genres: Animation, Comedy, Sci-Fi & Fantasy
Creators: Unknown
Countries: JP
Languages: Japanese

Ratings

TMDB audience7.8/10246 votes

Family guidance

Age ratings

—Not rated in Switzerland (CH)

—Not rated in Spain (ES)

12France (FR)

Not recommended for children under 12. Not allowed air before 10:00 p.m. Some channels and programs are subject to exception.

TV-14United States of America (US)

This program contains some material that many parents would find unsuitable for children under 14 years of age.

—Not rated in United Kingdom (GB)

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All regional certifications (21)

12France (FR)

Not recommended for children under 12. Not allowed air before 10:00 p.m. Some channels and programs are subject to exception.

TV-14United States of America (US)

This program contains some material that many parents would find unsuitable for children under 14 years of age.

MAustralia (AU)

Recommended for mature audiences; M-rated content may only be broadcast between 8:30 p.m. and 5:00 a.m. on any day, and additionally between 12:00 p.m. and 3:00 p.m. on schooldays.

14Austria (AT)

Freigegeben ab 14 Jahren

14Belgium (BE)

(cat. 5)

14Brazil (BR)

Content suitable for viewers over the age of 14.

14+Canada (CA)

Programming intended for viewers ages 14 and older. May contain strong violence and strong profanity, and depictions of sexual activity as long as they are within the context of a story.

15+Czech Republic (CZ)

Suitable for persons aged 15 years and over.

15Denmark (DK)

For ages 15 and up.

K16Finland (FI)

Not allowed air before 9:00 p.m., not recommended for children under 16.

12Germany (DE)

The broadcaster must take the decision about the air time by taking in consideration the impact on young children in the timeframe from 6:00am to 8:00pm.

16Hungary (HU)

Programs not recommended for teens and children below the age of 16, may contain more intensive violence and sexual content. A yellow circle with the number 16 written inside is used for this rating.

U/A 16+India (IN)

Viewable for 16 and above years old.

15Ireland (IE)

15A - No-one younger than 15.

B-15Mexico (MX)

Designed for ages 15 and up (allowed only between 19:00 and 05:59).

16Netherlands (NL)

Take care with children under 16.

15Norway (NO)

Only allowed during the period 21.00 – 05.30.

16Poland (PL)

Deviant social behaviour, world filled with violence and sexuality, simplified picture of adulthood, display of physical force, especially in controversial social context (against or by parents, teachers, etc.), immoral behaviour without ethic dilemma, putting the blame on the victim, excessive concentration on material possessions.

15Romania (RO)

Programmes not recommended for teens and children below the age of 15, may contain more intensive violence and sexual content.

PGSingapore (SG)

No additional details available.

6+Taiwan (TW)

Not suitable for viewing by children under the age of six; children over six and under the age of twelve can view if accompanied by parents, teacher or an adult relative.