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 anime depicts a 12-year-old girl's innocent worries and first love.
Source: ANN
Shogakukan-Shueisha Productions
Related works
* Based on slice of life romance shoujo manga series written and illustrated by Maita Nao.
The story centers around an elementary school teacher who is so stupid that he cannot even write his own name. He does whatever he likes in his classroom. Plus, by all appearances, he is not human.
Source: ANN