Coming Soon. Release date: 25th apr 2008, comes in 3 episodes with each ep per month

An OVA that is coming soon, all about girls’ sex education (lol?), it is about a fifth-grader girl named Tsubomi who deals with issues such as her mother’s pregnancy, her first period, and budding feelings for boys.

Sounds kinda interesting yet ecchi but based on the artwork, I suppose ecchi isnt the main theme of the anime.