Puberty can be a difficult stage for both boys and girls(specially girls) as it brings many changes in our bodies that can be very confusing and sometimes scary...
The story takes place in middle school, where our hero Mayama Haruki has grown enough to be interested in wanting to do "perverted" things with girls, but still isn't mature enough to know what is this so called "secret" that girls have "each month"(get it?).
The plot revolves around our MC finding out that the real secret of his childhood friend Himemiya Tsukiko, is something he wasn't expecting and he now must protect it at all costs for
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 Alternative TitlesSynonyms: The Iron Maiden's Puberty Japanese: 思春期のアイアンメイデン InformationType: Manga
Volumes: 5
Chapters: 41
Status: Finished
Published: Oct 19, 2012 to Oct 3, 2014
Theme:
School
Demographic:
Seinen
Serialization:
Young Gangan Authors:
Watanabe, Shizumu (Story & Art) Statistics Ranked: #81262 2 based on the top manga page. Please note that 'R18+' titles are excluded. Popularity: #2155
Members: 10,051
Favorites: 41 Available AtResources | Reviews
Filtered Results: 5 / 5
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Nov 30, 2015
Okay...my first review...I´m nervous.
First of all this manga isn´t BAD I repeat isn´t BAD. But still I´ll focus on the bad side... cause yeah... fuck good reviews. (JK (Just Kidding)) Simply if you want to see a ORIGINAL manga with an ORIGINAL concept this isn´t for you (I repeat this isn´t a bad manga) I´ll say I was overestimating this manga cause it has the romance and supernatural tags sticked to it. I thought it was going to be different to all the other mangas with those tags. Seriously I haven´t read tons of manga but I still could know what it was that was going ... 
Jan 5, 2018
Story: the story was interesting and good however it lacks of information
about other characters, sure thing they explained what is metamorphosis all about but they didn't show how did the other characters know how to cure it since it mention already that all article about metamorphosis was purposely hidden from the public's eye. they didn't also explained the background of one character there who's so obsess everything related to metamorphosis which i think is very important to explain. 8/10 Arts: I like the design of the main heroine so 9/10 Character: well i also like their personality so another 8/10 Enjoyment: Its a good ride. 8/10 Overall:8+9+8+8+8/5 = ... 
Oct 1, 2017
So I just finished binge reading this so its still fresh in my mind. I thoroughly enjoyed this manga and it has a unique plot compared to the other manga I've read (which tbh isn't much).
I thought the characters were nice but they can seem kinda generic. Plus (*spoiler maybe?*), MC's mom is badass. I enjoyed the development of the MC and the girl. The development is also similar to some other ones as it takes a short time for the guy to realize his feelings but the girl just has to take a detour. The story is unique to any other romance manga I've ... 
Mar 19, 2016
At first I felt the other two reviews of this manga weren't really helpful, but after checking it myself I sort of understand what they meant. This isn't a bad manga. It has decent art, an original twist to a coming to age story, and the plot seems to have a decent rhythm up to when I left it (and usually if the first 5 or 6 chapters work enough the reader will stay even if he hates it later on). But it's just so boring, there's nothing to hook you in.
As I see it it's a mixture of poorly explaining the stakes in ... |
