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 (Series)

Chill/ Comedic/ Reflective
2 Titles· 2021–2025

OshiMeter

8.0
15 Fans

Seasons

Characters

Azusa

Azusa Azuki is a 17-year-old high school student who initially presents a princess-like demeanor.

Aoi Yuuki

Laika

Laika is a non-human character discovered by Rik Heisenberg.

Kaede Hondo

Beelzebub

Beelzebub is a fly demon, a member of the royal Beelzebub clan, and a childhood friend of Azazel and Moloch.

Manami Numakura

Flatorte

Blanche de Médicis is a young member of the prominent de Médicis family within the San Fleuve Empire.

Azumi Waki

Falfa

Falfa is the oldest slime daughter of Azusa Aizawa, a cheerful and outgoing girl who contrasts with her quieter twin sister.

Sayaka Senbongi

Halkara

Halkara is a 225-year-old elf and the successful businesswoman behind Halkara Pharmaceuticals, the creator of the popular Nutri-Spirit energy tonic.

Sayaka Harada

Shalsha

Shalsha is an artificial slime spirit, the daughter of Azusa Aizawa and younger twin sister of Falfa.

Suzie Yeung

Pecora

Provat Pecora Allières is the Demon King and a popular idol.

Corina Boettger

Rosalie

Rosalie was Salva's childhood rival, accidentally killed by him as a child.

Riho Sugiyama

Vania

Vania is a Leviathan demon and the younger twin sister of Fatla.

Ari Ozawa

Fatla

Fatina is a grand sorceress introduced in Chapter 11 of I'm Standing on a Million Lives.

Miku Itou

Kuku

Kuku is a human female from the Kubooku Kingdom.

Kotori Koiwai

Bussler

Bassler is a Germanian air force captain and ace pilot whose squadron was destroyed by Izetta.

Ayasa Itou

Eno

Eno, also known as the Witch of the Grotto, is an approximately 150-year-old immortal witch.

Hikaru Tono

Sandra

Sandra is a 300+ year old sentient mandrake who, after gaining a human-like form, now lives with Azusa and others.

Yui Ogura

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Synopsis

In role-playing games, slimes are usually the easiest monster to kill, and because of that, they yield few experience points. But what would happen if you live long enough to keep defeating them for 300 years? After many years of being a corporate slave, Azusa Aizawa abruptly passes away due to severe exhaustion. Seemingly headed for the afterlife, she meets a goddess who bestows her with immortality alongside a peaceful life in another world. There, Azusa enjoys her days tending to her farm, protecting the nearby village, and killing about 25 slimes per day—a routine that continues for at least three centuries. However, this rather monotonous cycle begins to change when Azusa suddenly finds out that she has reached level 99—the maximum possible level—from slimes alone. Despite desperately trying to hide this fact in fear of ending her slow life, rumors of her strength spread nevertheless. Soon enough, various people throughout the continent, like the dragon Laika and the elf Halkara, start to appear at her doorstep—some seeking a battle, others asking for her assistance. Meeting friends and acquaintances who soon become family, Azusa finds she can live a life far better with others than when she was alone. [Written by MAL Rewrite]