12-sai.: Chicchana Mune no Tokimeki

April 4, 2016

Finally, Hanabi Ayase, Yui Aoi, Marin Ogura and the others are 6th graders! One day, the girls are talking about kissing.

April 11, 2016

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.

April 18, 2016

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.

April 25, 2016

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.

May 2, 2016

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.

May 9, 2016

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?

May 16, 2016

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...

May 23, 2016

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.

May 30, 2016

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.

June 6, 2016

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.

June 13, 2016

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.

June 20, 2016

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.