Age 12

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Alternative Titles

Synonyms: Juuni-sai.
Japanese: 12歳。
English: Age 12
More titles


Type: OVA
Episodes: 8
Status: Finished Airing
Aired: Apr 3, 2014 to Jan 3, 2015
Producers: Half H.P Studio
Licensors: None found, add some
Studios: SynergySP
Source: Manga
Genre: RomanceRomance
Theme: SchoolSchool
Demographic: ShoujoShoujo
Duration: 11 min. per ep.
Rating: PG - Children


Score: 6.231 (scored by 60106,010 users)
1 indicates a weighted score.
Ranked: #84032
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #5542
Members: 14,127
Favorites: 18


Ranked #8403Popularity #5542Members 14,127
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Episodes: /8


The story begins with Hanabi, a sixth-grade girl who is neither an adult nor a child. She deals with issues such as accidentally witnessing her homeroom teacher kissing, and worrying about experiencing physiological changes before her friends. The manga depicts a 12-year-old girl's innocent worries and first love.

(Source: ANN)


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Related Anime

Characters & Voice Actors


Okuwaki, Masaharu
Maita, Nao
Original Creator
Yamada, Kaori
Sound Effects
Oono, Kayoko
Color Design


Opening Theme

Apple Music
Amazon Music
Youtube Music
"Sweet Sensation" by Murakawa Rie

Ending Theme

"Koi no 12-sai (恋の12歳)" by Utataneko Kageki Dan (うたたねこ歌劇団)


Jan 7, 2015
Preliminary (1/8 eps)
My scoring of this show might seem weird at first but you should be able to see why soon. this super short story is adorable in its presentation however it is so very realistic in its storytelling. The story involves a class of 12 year olds and they react and do things you would expect from 12 year olds. the main point i liked about this anime was that the relationship was one of the most realistic i have seen. as they don't understand the real meaning behind a kiss there is no faffing about with the development. as kids normally do they say they ...
Jan 31, 2015
Preliminary (1/8 eps)
The first few minutes of this short may give the impression that this is another cheesy romance story aimed at the tween-age audience. The main character is excited about being “grown-up”, and yet we adults know those in the tween-age years really aren't as grown-up as they think. Something to keep in mind is that in the mind of many kids in their tween-years they are “grown-up” – meaning they're no longer little kids, but not yet adults either. This time period is a complicated time period of discovery for this age group.

That is one of the charms of this particular short – it manages ...
Nov 6, 2014
Preliminary (1/8 eps)
With a 14 minute run time there isn't much to go off of, but it is still a significant amount of time to do something right. Hard to review something that's 14 minutes without any spoilers, but trust me it won't really matter either way.

Story: 2

Boy meets girl, other boys are asses. Her classmate also likes said boy and is trying to manipulate the two of them apart when they were assigned a lesson together. Cliched as hell. The merit this story had was lost on the fact that these are 12 year olds doing stupid shit in front of their teacher, and the teacher ...

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Recent News

TV Anime of Manga '12-sai.' Announced

TV Anime of Manga '12-sai.' Announced

The March 2016 issue of Ciao magazine (cover pictured), which will go on sale on February 3, has announced that shoujo romance manga 12-sai. will be receiving a TV a...read more

Shoujo Manga '12-sai.' Gets OVA Adaptation

Shoujo Manga '12-sai.' Gets OVA Adaptation

A scan from the upcoming issue of Ciao magazine reveals that shoujo manga 12-sai. will be receiving an anime adaptation. The adaptation is an OVA included in the Cia...read more

Recent Forum Discussion

Poll: 12-sai. Episode 1 Discussion
tsubasalover - Apr 10, 2014
45 repliesby rabbitGirlsenpai »»
Jul 7, 2021 1:34 AM
Poll: 12-sai. Episode 2 Discussion
Mana - Jul 31, 2016
5 repliesby Shinjinotikari17 »»
Jun 17, 2020 12:07 PM
Poll: 12-sai. Episode 8 Discussion
RafaelDeJongh - Sep 13, 2016
1 repliesby Ulquiorra »»
Nov 9, 2016 4:05 PM
Poll: 12-sai. Episode 7 Discussion
Mana - Jul 31, 2016
2 repliesby Ulquiorra »»
Nov 9, 2016 3:55 PM
Poll: 12-sai. Episode 6 Discussion
Mana - Jul 31, 2016
2 repliesby Ulquiorra »»
Nov 9, 2016 3:46 PM