12-sai.: Chicchana Mune no Tokimeki

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Alternative Titles

Synonyms: Age 12., Juuni-sai.
Japanese: 12歳。~ちっちゃなムネのトキメキ~


Type: TV
Episodes: 12
Status: Finished Airing
Aired: Apr 4, 2016 to Jun 20, 2016
Premiered: Spring 2016
Broadcast: Mondays at 19:30 (JST)
Licensors: None found, add some
Studios: OLM
Source: Manga
Genre: RomanceRomance
Theme: SchoolSchool
Demographic: ShoujoShoujo
Duration: 24 min. per ep.
Rating: PG - Children


Score: 6.401 (scored by 1686416,864 users)
1 indicates a weighted score.
Ranked: #73562
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #3795
Members: 35,702
Favorites: 64

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Ranked #7356Popularity #3795Members 35,702
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Episodes: /12


Reaching a period of life where they are neither a child nor an adult, 12-year-old Hanabi Ayase and Aoi Yui meet with life-changing events. Due to the mischievous demeanor of her male classmates, Ayase does not think highly of the opposite sex. However, her perspective begins to change after she is paired with the kind-hearted Takao Yuuto for a class assignment and unexpectedly shared their first kisses with each other on the school rooftop.

With her best friend discovering love, Aoi yearns to seek her own. She finds herself falling in love with the rash Kazuma Hiyama after protecting her from a rejected suitor who had talked behind her back.

12-sai.: Chicchana Mune no Tokimeki follows the four in this phase of adolescence. As they grow up alongside each other, this sweet romance depicts the innocence and excitement of first love.

[Written by MAL Rewrite]

Characters & Voice Actors


Sasaki, Reiko
Itou, Kaori


Opening Theme

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

Ending Theme

"Cotona MODE" by AOP


Jan 2, 2017
If I had to choose a word to describe this anime, it would be "cute". This anime was so adorable and cute that it really touched my heart. I judge anime based on enjoyment and whether or not it executes it's stated genres to perfection. For example, This anime was romance and it gave us a lot of romantic scenes. I fell in love with all the romance scene. The characters where also adorable and I imagined myself as the heroine, Ayase.
This anime explores topics like first love, growing up and friendships and relationships at a young age. I know a lot of people ...
Jul 17, 2016
Mixed Feelings
12 years old???, then why do they act more mature than that????.

Ok look, LA knows this anime isn't for LA's demographic but LA is kinda a sucker for romance anime and LA watched the ONA for this years ago and wanted to see how this would get the full anime treatment that Houkago no Pleiades did.

12-sai follows the relationships of 12 year olds of Hanabi Ayase voiced by Ai Kakuma and Yuuto Takao voiced by Soma Saito as well as Hanabi's friend of Yui Aoi voiced by Juri Kimura and Kazuma Hiyama voiced by Shun Horie and follows their experiences and obstacles in first ...
Jan 30, 2022
Recommendation: Skip it unless you have the highest possible tolerance for corniness and overly-sweet sentimentality. This review covers both seasons of the full length anime, not the original short OVAs.


+ Sweet and innocent. Red flags may go flying up when you hear it's an anime about 6th graders in love, but there is zero fanservice or sexualization of the characters here. It feels like it was written for the actual demographic it portrays (middle school-aged girls), rather than for otaku voyeurism. Rest assured, there is nothing in this series that could possibly qualify as objectionable or creepy.

+ Convincingly portrays the transition from childhood to ...

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Recent News

Second Cours of '12-sai.: Chicchana Mune no Tokimeki' to Air in Fall 2016

Second Cours of '12-sai.: Chicchana Mune no Tokimeki' to Air in Fall 2016

A display stand at the International Tokyo Toy Show 2016 booth for the 12-sai.: Chicchana Mune no Tokimeki anime revealed that a second cours of the series will air ...read more

Spring 2016 Preview

Spring 2016 Preview

In this thread, you'll find a comprehensive list of Spring 2016 titles with an accompanying promotional video (PV), TV ad (CM), or trailer. This post will be up...read more

Recent Forum Discussion

Is this the same story as the 2014 OVA?
MrYandereFan26 - Jan 10
1 repliesby Sakura_2345 »»
Jan 12, 6:50 AM
Poll: 12-sai.: Chicchana Mune no Tokimeki Episode 6 Discussion
Stark700 - May 9, 2016
30 repliesby ims-tokyo »»
Aug 30, 2022 7:17 AM
Poll: 12-sai.: Chicchana Mune no Tokimeki Episode 10 Discussion
Stark700 - Jun 6, 2016
31 repliesby XNohaco2468 »»
Aug 3, 2021 8:40 AM
Poll: 12-sai.: Chicchana Mune no Tokimeki Episode 1 Discussion ( 1 2 )
Stark700 - Apr 4, 2016
94 repliesby hanakocheeks »»
Aug 2, 2021 1:32 AM
Poll: 12-sai.: Chicchana Mune no Tokimeki Episode 2 Discussion ( 1 2 )
Stark700 - Apr 11, 2016
53 repliesby CalmTeaTime »»
Jun 4, 2021 1:31 PM