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]+ More
More Seasons
Characters & Voice Actors

Aoi, Yui
Main
Ayase, Hanabi
Main
Hamana, Kokoa
Supporting
Ogura, Marin
Supporting
Tsutsumi, Ayumu
SupportingRecommended for you
High School Fleet OVA
OVA
24m
7 Seeds 2nd Season
ONA
24m
Himouto! Umaru-chan
TV
24m
Mars Daybreak
TV
23m
Mikan's Picture Diary
TV
23m
The Pilot's Love Song
TV
24m
Girls & Panzer OVAs
Special
12m
RIN-NE 2nd Season
TV
24m
Lord Marksman and Vanadis
TV
24m
Please Teacher!
TV
23m
Invaders of the Rokujyoma!?
TV
23m
Flavors of Youth
Movie
74m
Daimos
TV
24m
Ultramaniac - Magical Girl
TV
24m
Gear Fighter Dendoh
TV
23m