12-sai.

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)

Type: OVA
Rating: PG - Children
Season: None None
Status: Finished Airing
Read more: MyAnimeList (MAL)
Studios: SynergySP
Genres: Romance
Tags: school school life shoujo based on a manga earth japan asia present romance friendship middle school unrequited love