Houkago Hokenshitsu
After School Nightmare
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Houkago Hokenshitsu

Alternative Titles

Synonyms: Afterschool Nightmare
Japanese: 放課後保健室
English: After School Nightmare
More titles


Type: Manga
Volumes: 10
Chapters: 39
Status: Finished
Published: Dec 22, 2004 to 2008
Genres: Drama Drama, Horror Horror, Mystery Mystery, Romance Romance, Supernatural Supernatural
Themes: Love Polygon Love Polygon, Psychological Psychological, School School
Demographic: Shoujo Shoujo
Serialization: Princess
Authors: Mizushiro, Setona (Story & Art)


Score: 7.871 (scored by 81308,130 users)
1 indicates a weighted score.
Ranked: #10422
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #928
Members: 18,597
Favorites: 662


Ranked #1042Popularity #928Members 18,597
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Volumes: /10
Chapters: /39
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Mashiro Ichijou, an attractive and popular high school student, has always lived his life as a boy. However, nobody notices that deep down, he resents the fact that his body is half female. He has decided to conceal his femininity from those around him, while in reality, he is insecure about who he is supposed to be.

One day, an unfamiliar nurse asks Mashiro to follow her to the school's infirmary in the basement—an office that has never existed until now. Little does he realize that the moment he steps into the mysterious room, he will never be capable of returning to being the person he was before.

As he struggles to find his true identity, Mashiro must face the disquiet in his own heart, all while protecting himself from the prying eyes of his classmates. Slowly but steadily, the unbecoming truth of the world is laid bare: all its lies and deceit engulfed in nightmares that only unfold in broad daylight.

[Written by MAL Rewrite]


Houkago Hokenshitsu was published in English as After School Nightmare by Go! Comi from September 2006 to February 2009.



Apr 24, 2019
Mashiro being "half" female and "half" male is a plot point, but it is not about being trans nor intersex. This series deals with gender identity, but you'll do yourself a diserve if you judge it by 2010+ standards and judgement. This is an old series from early 2000s, and as I said does NOT deal with trans nor intersex and was never meant to. A good manga focused on trans is Wandering Son/Hourou Musuko.

Now onwards for the whole thing

After School Nightmare is very special. In more ways than one. I don't even know if I'll be able to do it justice, and that scares ...
Sep 22, 2010
Mixed Feelings
A (highly) unique manga but not deserving the amount of high reviews it has on MAL.

The thing that stands out to me is how far off the reviews are with the actual "overall" definition of the manga.

This can be understandable as it can be quite difficult reviewing a manga with several major character developments without spoiling the whole thing.

This however doesn't excuse how all the reviews read like they are reviewing the synopsis instead of the whole thing.

The two main issues I'd like to contrast with the other reviews are that:

Aug 16, 2022
It's been a few years since I read this manga and I still mentally groan when I think about it.

It felt so very shallow and even insulting at times with how it handled gender, sexual orientation, etc. Which I will give it that it is from the early 2000's so things hadn't progressed to where they are now. Regardless, I don't think the characters were handled well and the whole read left a bad taste in my mouth.

If none of this bothers you then you will probably enjoy the read. I would just caution anyone who might find the handling of the gender ...

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Recent News

Recent Forum Discussion

After School Nightmare Chapter 27 Discussion
-Arcee- - Aug 19
0 repliesby -Arcee- »»
Aug 19, 9:29 AM
Poll: Houkago Hokenshitsu Chapter 12 Discussion
Lunar191 - Feb 11, 2012
1 repliesby -Arcee- »»
Aug 17, 5:07 AM
Poll: After School Nightmare Chapter 39 Discussion
accela - Jul 30, 2009
36 repliesby Stardew »»
Feb 25, 12:58 PM
Poll: Houkago Hokenshitsu Chapter 26 Discussion
Lunar191 - Feb 11, 2012
1 repliesby Drakenbocks »»
Sep 22, 2021 3:11 PM
the Pairing: Suo x Mashiro / Kureha x Mashiro ?
mizugazipan - Mar 8, 2008
19 repliesby CoolCatCraze »»
Dec 15, 2019 12:29 PM

It’s time to ditch the text file.
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