📖 SYNOPSIS
What happens when you shrink four of the biggest isekai casts in anime — Overlord, KonoSuba, Re:Zero, and The Saga of Tanya the Evil — down into chibi form and dump them into a high school classroom together? You get Isekai Quartet. A mysterious red button appears in each of their worlds, and because nobody in anime can resist pressing a mysterious red button, they all end up trapped in a school setting where Ainz Ooal Gown has to sit through classes alongside Kazuma, Subaru Natsuki, and a tiny rage-filled Tanya Degurechaff. The comedy comes from watching these characters bounce off each other in ways their own series would never allow. Kazuma trying to recruit Darkness-level masochists from other shows, Ainz awkwardly pretending to be a normal student, Rem being aggressively devoted to Subaru while everyone else just watches — it's all played for laughs with zero stakes and full self-awareness. Each episode is only about 12 minutes, so the whole 12-episode TV series goes by fast. The chibi art style from Studio PuYUKAI keeps things light and goofy, which fits perfectly since this is pure parody. If you liked Attack on Titan: Junior High or Kaginado, this is the same energy — beloved characters in a low-key setting just being ridiculous. You'll get more out of it if you've seen at least one or two of the source shows, but honestly, the character dynamics are funny enough on their own.
✨ MUST WATCH IF...
❌ SKIP IF...
🎬 EPISODE GUIDE
🎭 CHARACTERS
Emilia
Kind half-elf, royal candidate, struggles with prejudice, and childish innocence.
Portrayed by Takahashi Rie
Subaru Natsuki
A time-traveling gamer, Subaru is loyal and protective of his friends, overcoming challenges with his 'Return by Death' ability.
Portrayed by Kobayashi Yuusuke
Kazuma Satou
A transported gamer, Kazuma uses wit and skills to survive in Isekai Quartet's comedic world.
Portrayed by Olguín Javier, Turba David, Bougleux Erick, Bourlé Bastien, Fukushima Jun
Momonga
Ainz Ooal Gown, formerly Momonga, is a powerful undead Sorcerer King, fiercely loyal to his followers, and cunningly strategic in his actions.
Portrayed by Hino Satoshi
Tanya Degurechaff
Ruthless, ambitious young sorceress Tanya Degurechaff prioritizes survival and advancement in a war-torn world.
Portrayed by Toriumi Kousuke, Yuuki Aoi
Aqua
Energetic goddess Aqua, clumsy but powerful, loves reverence, and wastes skill points on party tricks.
Portrayed by Molina Daniela, González Nycolle, Caruso Lisa, Pazete Natali, Amamiya Sora
Albedo
Nazarick's Overseer, Albedo, is a powerful, beautiful guardian fiercely loyal to Ainz Ooal Gown, often jealously guarding his affection.
Portrayed by Hara Yumi
Viktoriya Ivanovna Serebryakova
Viktoriya Serebryakova: Tanya's loyal adjutant, a mage formerly of Platoon 3, now serving in V601.
Portrayed by Hayami Saori
Isekai Quartet Series

PV · 2018 · Studio PuYUKAI
Isekai Quartet Relay PVs
"Isekai Quartet Relay PVs" presents a series of promotional videos featuring original animation, offering fresh glimpses into the crossover world of beloved isekai characters.

TV · 2020 · Studio PuYUKAI
Isekai Quartet 2
The isekai crossover continues as beloved characters from Re:Zero, Overlord, KonoSuba, Tanya the Evil, and The Rising of the Shield Hero collide in hilarious everyday scenarios.

Movie · 2022 · Studio PuYUKAI
Isekai Quartet The Movie: Another World
The Isekai Quartet class is transported to a desolate world where they face a rampaging automaton, encountering familiar faces and comedic chaos.

TV · 2025 · Studio PuYUKAI
Isekai Quartet 3
The chibi characters from various isekai anime continue their chaotic school life, navigating new challenges and forging unlikely friendships in a shared world.
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