Isekai Quartet
A mysterious switch appeared one day. Upon pressing it, they were sent to a different alternative world!! There are also characters from other alternative worlds gathered together...!?
Seasons
1. Come Together! Quartet
Air Date: 2019-04-10
Mysterious buttons appear in the worlds of Tanya the Evil, KonoSuba, Overlord, and Re:Zero. When the characters push them, they're taken to a place they'd never imagined...
2. Tension! Introductions
Air Date: 2019-04-17
Now that everybody's settled in, it's time for the first day of school, which means everybody has to introduce themselves.
3. Deadlock! Classmates
Air Date: 2019-04-24
The students begin to wonder about why they are here, and what this school really is. Tanya, in particular, has a theory about Ains...
4. Encounter! Classmates
Air Date: 2019-05-01
The students realize that they're all from other worlds, and begin to share their backgrounds. But some are luckier than others...
5. Explosion! Talent Show
Air Date: 2019-05-08
It's time for the talent show, but none of the students are talented at all. The KonoSuba crowd in particular...
6. Decision! Class Rep
Air Date: 2019-05-15
It's time to pick the class rep! But Aqua doesn't want Ains to do it, and Albedo doesn't want Aqua anywhere near the job.
7. Carry Out! Class Rep
Air Date: 2019-05-22
Emilia's the class rep now, but it's really hard. But she wants to do her best!
8. Prepare! Field Trip
Air Date: 2019-05-28
It's time for a field trip to the beach, and the gang's getting ready. But who wants to see Kazuma in a swimsuit?
9. Enjoy! Field Trip
Air Date: 2019-06-04
The field trip is here, and it's great! Everybody's at the beach and having a great time. But Tanya hears something that makes her upset...
10. Join In! Rivals
Air Date: 2019-06-12
It's time for Field Day, and Roswaal hints that whoever wins will get to go home. But then they meet their opponents...
11. Work Together! Field Day
Air Date: 2019-06-19
Field Day is here, and it's lots of fun for everyone. There's tug of war, scavenger hunts... and giant robots?!
12. Band Together! Quartet
Air Date: 2019-06-26
The mobile fortress "Destroyer" has joined the last game! It's up to the quartet to grab its headband and win the game.
1. Join the Fight! Transfer Student
Air Date: 2020-01-15
The students have now finally settled into their new lives, but a new student has come to the school, and his name is… "Shield"?
2. Sneak In! The Principal's Office
Air Date: 2020-01-22
Life's great in this world, except for one thing: there's no alcohol! When the students sneak into the principal's office to get their fix from his stash, they run into more than they bargained for.
3. Uh-Oh! Detention!
Air Date: 2020-01-29
This new world is a great place: no fighting, no danger, and the classes are easy. But you REALLY don't want to get detention!
4. Pinch! Test of Learning
Air Date: 2020-02-05
It's time for a test! Everybody expects Ains to score highly, but… he never even passed middle school!
5. Work Hard! Valentine's Day
Air Date: 2020-02-12
It's Valentine's Day, which means it's time to give chocolate to the boy you like! But an unexpected face makes an appearance…
6. Clash! Dodgeball
Air Date: 2020-02-19
It's time for a battle to settle the most important question of all: what do you put on your chicken wings?
7. Excitement! Physicals Day
Air Date: 2020-02-26
It's time for physicals, and everybody's ready to get naked and get on the scale! Who will be brave enough to go peek at the opposite sex?
8. Challenge! Part-Time Job
Air Date: 2020-03-04
Visha's been working overtime lately. But what does she need the money for?
9. Investigate! First Errand
Air Date: 2020-03-11
It's time for a play! But what kind of play should they put on? Filo will find out!
10. Rise Up! School Festival
Air Date: 2020-03-18
It's time for a school festival! But something is lurking outside the school…
11. It Begins! School Festival
Air Date: 2020-03-25
The curtain rises on the school festival! There's a special guest, too…
12. The Show Begins! Showtime
Air Date: 2020-04-01
The mobile fortress "Destroyer" has joined the last game! It's up to the quartet to grab its headband and win the game.
Select an episode to start watching
Rating
6.9/10
Release Date
2019-04-10
Episodes
24 (2 seasons)
Status
Ended
Cast
Aoi Yuki
Tanya Degurechaff (voice)
Jun Fukushima
Kazuma Satou (voice)
Rie Takahashi
Emilia / Megumin (voice)
Saori Hayami
Viktoriya Ivanovna 'Visha' Serebryakov (voice)
Satoshi Hino
Momonga / Ains Oooal Gown (voice)
Yusuke Kobayashi
Subaru Natsuki / Warren Grantz (voice)
Sora Amamiya
Aqua (voice)
Yumi Hara
Albedo (voice)
Kaito Ishikawa
Naofumi Iwatani
Emiri Kato
Aura Bella Fiora (voice)
Satomi Arai
Beatrice (voice)
Ai Kayano
Darkness (voice)
Videos
Production Companies
Studio Puyukai
KADOKAWA