Kimi wa Houkago Insomnia

High schooler Ganta Nakami has trouble falling asleep most nights. As a result, he is irritable at school, always searching for an opportunity to find a secluded place to doze off. On the other hand, Isaki Magari is a free spirit who is well liked by her friends, but no one is aware of her sleep disorder. She makes use of the school's abandoned astronomy club observatory as her secret sleeping bunker when she needs to get some shut-eye.

As fate would have it, Nakami finds Magari napping in the observatory. When Magari discovers that she and Nakami have something in common, she offers to share her secret sleeping spot with her fellow insomniac. As the two find warmth in each other's company, the struggles they face start to become easier to confront.

[Written by MAL Rewrite]

Magari, Isaki Main

Tamura, Konomi Japanese

Nakami, Ganta Main

Satou, Gen Japanese

Shiromaru, Yui Supporting

Tomatsu, Haruka Japanese

Ukegawa, Tao Supporting

Yamashita, Seiichirou Japanese

Anamizu, Kanami Supporting

Fujiwara, Natsumi Japanese

Kurashiki, Usako Supporting

Noto, Mamiko Japanese

Kanikawa, Motoko Supporting

Lynn Japanese

Magari, Haya Supporting

Amamiya, Sora Japanese

Nono, Mina Supporting

Morohoshi, Sumire Japanese

Softball Club Advisor Supporting

Soumi, Youko Japanese

Sasaki, Reiko Producer

Nagai, Chiharu Producer

Kashimura, Emi Producer

Nishikawa, Kyouhei Producer

Reviews

Mar 13, 2026

Phoenixking4

Recommended

100 percent recommended everything is great amazing show great story every character is beautifully written great music it was a great story altogether Just finished Insomniacs After School and wow… this anime quietly became one of the most beautiful shows I’ve watched.
Insomniacs After School doesn’t rely on crazy drama or over-the-top romance. Instead, it tells a soft, honest story about two people who simply can’t sleep and end up finding comfort in each other during the quietest hours of the night.
The atmosphere is incredible — the late-night skies, empty streets, and peaceful silence feel almost therapeutic. Every scene with Ganta and Isaki feels genuine, ... awkward, and warm in a way that makes their relationship feel real rather than “anime-romance.”
What really stood out to me was how the show turns insomnia, something painful and lonely, into something strangely beautiful. Two people who feel broken in the same way slowly help each other feel normal again.
It’s calm, emotional, and incredibly sincere. Not loud. Not dramatic. Just human.
If you like slow romance, quiet moments, and stories that feel real, Insomniacs After School is absolutely worth watching. It’s the kind of anime that leaves you feeling peaceful long after it ends.

Reviewer’s Rating: 10

What did you think of this review?

Nice 0

Love it 0

Funny 0

Confusing 0

Informative 0

Well-written 0

Creative 0

More reviews by Phoenixking4 (1)

Show all

Read more

Show less

Open

Gift

Report

Aug 31, 2025

UserWithaName

Mixed Feelings

This show evokes a weird feeling out of me while thinking back about it, kinda of like a false sense of nostalgia. Every time I see screenshots or frames of this show I feel like it was a cool, dramatic, really interesting show but every time I think about it I can't ever remember anything being that interesting. I liked the ending but its no heartstring-puller. Nothing of this show particularly stands out as great but it is in no way a bad show. I was pretty invested in it for a day or two but I really don't know why. I can't say this ... is worth a watch just because it feels like it was supposed to be so much better than it was. I'd say it's the absolute middle road of romance animes. The romance is good, prolly somewhere between high 6 and low 8 out of ten, but that is geniunely the only theme ever explored. The insomnia thing is more or less irrelevant and just a means of initial bond between the two mcs. And astronomy club is essentially a larger off shoot of the same bonding purposes. I'm like 70% sure I finished the show disappointed, but I would still consider it nothing less (or frankly more) than solid. Maybe its my fault and I was just like "space cool stars cool very awesome interesting amazing 9/10 anime" but honestly coming in to the show without knowing what it was about (somehow) I woulda prolly clicked off of it during the first episode.

Reviewer’s Rating: 7

What did you think of this review?

Nice 0

Love it 0

Funny 0

Confusing 0

Informative 0

Well-written 0

Creative 0

More reviews by UserWithaName (10)

Show all

Read more

Show less

Open

Gift

Report

Jun 29, 2024

Hachiman010

Not Recommended

Inconsistent, Plotless, Complete waste of time.

There is literally no story, the romance is also pretty bland without any drama. Honestly pretty disappointed by the poster. I thought it would be some kind of cool astrologist typo anime with a little bit romance here and there but in reality it was just a sad life story of a highschooler who cant sleep and then he somehow gets into taking idle photos of sky while trying to find a sleeping place in an abandoned club .Would not recommend this to anyone who has this kind of perception going into the anime because you're gonna get your ... time wasted. And it doesnt even deserve 7 let alone 8, maybe the beach scene got people to rate it higher

Even scum wish was better. atleast it had some story

Reviewer’s Rating: 3

What did you think of this review?

Nice 0

Love it 0

Funny 0

Confusing 0

Informative 0

Well-written 0

Creative 0

More reviews by Hachiman010 (1)

Show all

Read more

Show less

Open

Gift

Report

A Taste Of Everything New You Missed From 2023 Anime

by Theannoy3rd1

47 Entries · 240 Restacks

Watch in YouTube for Free

by SyMoe

47 Entries · 12 Restacks

2020 Vision: A Look into Anime of the 2020s

by Ash_li

50 Entries · 154 Restacks

North American Anime & Manga Releases for May

Here are the North American anime, manga, and light novel releases for May. Week 1: May 6 - 12 Anime Releases Yumekui Merry (Dream Eater Merry) Complete Collection B...read more

May 4, 2025 5:58 AM by Aiimee | Discuss (3 comments)

North American Anime & Manga Releases for March

Here are the North American anime, manga, and light novel releases for March. Week 1: March 5 - 11 Anime Releases Kaifuku Jutsushi no Yarinaoshi (Redo of Healer) Com...read more

Mar 12, 2024 9:00 AM by Aiimee | Discuss (1 comment)

	Poll: Kimi wa Houkago Insomnia Episode 13 Discussion ( 1 2 3 4 ) KANLen09 - Jul 3, 2023	188 replies	by R0ary »» Feb 6, 7:58 AM
	Poll: Kimi wa Houkago Insomnia Episode 1 Discussion ( 1 2 3 4 5 ) Pre_Yum - Apr 10, 2023	231 replies	by R0ary »» Feb 1, 3:36 AM
	Poll: Kimi wa Houkago Insomnia Episode 11 Discussion ( 1 2 3 4 ) KANLen09 - Jun 19, 2023	154 replies	by KyoumaScorsese »» Dec 19, 2025 4:14 PM
	Poll: Kimi wa Houkago Insomnia Episode 6 Discussion ( 1 2 3 ) KANLen09 - May 15, 2023	109 replies	by modboy »» Dec 7, 2025 12:46 PM
	Poll: Kimi wa Houkago Insomnia Episode 3 Discussion ( 1 2 3 ) KANLen09 - Apr 24, 2023	123 replies	by Beguni »» Nov 28, 2025 8:50 AM