Insomniacs After School poster

Insomniacs After School

TV Show TV-14 2023 24m/ep 7.6 /10 Ended
TV Tokyo A TV Tokyo Original
Created by Rintaro Ikeda, Makoto Ojiro

Insomniacs After School follows Ganta Nakami, a high schooler whose nights are spent counting sheep and scrolling through his thoughts. He meets Isaki Magari, a girl sharing the same restless condition, and a tentative friendship blooms. Instead of typical teen drama, the series treats their... Read more

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Streaming availability last verified: January 31, 2026

About Insomniacs After School

Insomniacs After School follows Ganta Nakami, a high schooler whose nights are spent counting sheep and scrolling through his thoughts. He meets Isaki Magari, a girl sharing the same restless condition, and a tentative friendship blooms. Instead of typical teen drama, the series treats their insomnia as a lens on loneliness, trust, and late night conversation. The pair gravitate toward the school's abandoned observatory, where quiet skies and the hush of the building provide a rare space to open up. As they swap secrets, they begin to rely on each other to survive the insomnia that rules their days. The show uses understated humor and intimate moments to explore adolescence under unusual circumstances. Its pace stays gentle and earnest throughout.

This 2023 animated series was created by Rintaro Ikeda and Makoto Ojiro. It presents an original concept rather than adaptation, and the voices bring the leads to life with Gen Sato as Ganta Nakami and Konomi Tamura as Isaki Magari.

The show has a measured reception with an average rating of 7.6 out of 10 from 48 votes, suggesting a solid appeal among viewers who enjoy thoughtful character focus. Central themes include insomnia as a social and emotional signal, friendship, and finding safety in night time spaces.

The series has drawn attention for its quiet nocturnal mood and restrained humor, offering a different flavor of teen drama. Its observatory setting and delicate look have sparked discussion among fans who appreciate animation that treats sleep and loneliness with care.

Details

Release Date
April 11, 2023
Episode Length
24m
Rating
TV-14
User Ratings
48 votes
Type
TV Series
Seasons
1
Episodes
13
Network
TV Tokyo
Status
Ended
Genres
Animation, Comedy, Drama
Country
Japan
Studio
LIDENFILMS +2 more
External Links
View on IMDB

Official Trailer

Cast

Gen Sato

Gen Sato

Ganta Nakami (voice)

Konomi Tamura

Konomi Tamura

Isaki Magari (voice)

Created by: Rintaro Ikeda, Makoto Ojiro

Seasons (1 season, 13 episodes)

Season 1

Season 1

13 episodes - 2023

Frequently Asked Questions

Insomniacs After School is available to stream on Hulu. You can also rent or buy it on Amazon Video.

Yes, Insomniacs After School is available to stream on Hulu.

Yes, you can buy on Amazon Video.

Insomniacs After School has 1 season with a total of 13 episodes.

With a rating of 7.6/10 from 48 viewers, Insomniacs After School is well-regarded and recommended by viewers.

Insomniacs After School follows Ganta Nakami, a high schooler whose nights are spent counting sheep and scrolling through his thoughts. He meets Isaki Magari, a girl sharing the same restless condition, and a tentative friendship blooms. Instead of typical teen drama, the series treats their inso...

Insomniacs After School stars Gen Sato and Konomi Tamura.

Insomniacs After School was created by Rintaro Ikeda and Makoto Ojiro.

Insomniacs After School was released on April 11, 2023.

Insomniacs After School is a Animation, Comedy, and Drama series.

Insomniacs After School has one season and is listed as ended. There hasn't been an announced second season.

Gen Sato voices Ganta Nakami, the high school student who suffers from insomnia. Konomi Tamura voices Isaki Magari, the girl with the same condition.

The show follows Ganta Nakami and Isaki Magari as they bond over their insomnia. They meet in their school's abandoned observatory and share a secret while catching up on sleep.

The series has a TV-14 content rating. It blends animation with comedy and drama to tell the story, making it suitable for teens and older viewers.