Original title
12歳。～ちっちゃなムネのトキメキ～
Released
4/4/2016
Origin country
JP
Genre
Animation, Drama
Production companies
OLM
Status
Ended
Number of seasons
2
Number of episodes
24
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 series depicts a 12-year-old girl's innocent worries and first love.
Finally, Hanabi Ayase, Yui Aoi, Marin Ogura and the others are 6th graders! One day, the girls are talking about kissing.
At Yui's household the bath broke and she has to take bath at Hiyama Bathhouse. Even though she decided not to fall in love, she starts having feelings for Kazuma Hiyama.
Yuuto asked Hanabi to go out with him. His girlfriend convinces him to take Yui and Kazuma along with them. The two couples go on a double date at the mall.
Class 6-2 has a new student: Hanabi's childhood friend who has just came back from Tokyo, who starts having a crush for Hanabi, despite seeming to be a bit of a bully.
Hanabi and Ayumu go shopping to get a present for Yuuto's birthday, after which Hanabi will go on a date with Yuuto and give him his present.
Ayumu tries to take Hanabi away from Yuuto. They wind up in a race. Cocoa, who wants to be Yuuto's girlfriend, decides to help Ayumu win. Can Hanabi and Yuuto discover the truth?
After Kazuma asked Yui to walk her home, she thinks what does she like him for. The answer finds it's begin in previous year...
Hanabi and Yui try to address Yuuto and Kazuma by their names, and to make the boys do the same. In the end, only Yui and Kazuma manage to, when Hanabi and Yuuto couldn't.
Due to a misunderstanding, Hanabi and Yui fall out with each other and won't speak to each other for the next few days. In the end, Hanabi reconciles with Yui while defending the latter from other girls from another school.
With the Tanabata coming along, Hanabi's homeroom teacher asked the class to write something nice about their classmates in their Tanzaku in hopes that it will strengthen the bond between boys and girls in the class.
After accidentally hitting Yui on the head with a football during the gym lesson, Kazuma invites her to a pool date as an apology and they invite Hanabi and Yuuto.
With Yui's cram school lessons and Kazuma's work in his family's bathhouse, Hanabi and Yuuto are left to go on a date at the summer festival.
After entering her puberty, Yui Aoi started having pimples on her face, which worries her that because her pimple, Kazuma might not like.
At cram school, Inaba tries to make Yui like him, but in the end she thinks of him as nothing more than a playboy.
Parent's Day is coming up in class 6-2, and a lot of the family members of the students are coming to the class.
Yui helps the girls in her class make wish bracelets, which are bracelets that, if worn by the person you like and yourself, will make the two of you stay together forever.
Inaba takes Yui to the fair to cheer her up. He ties her wish bracelet to a balloon and sets it free to symbolize her leaving Kazuma.
Class 6-2 is performing a school play. The play is Cinderella, and Yui is cast as Cinderella and Yuuto as the prince.
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