According to Dengeki Online, an OVA project of otome game "Vitamin X" series was announced at a live event "Vitamin X to Z Ikuze! Kyukyoku★Explosion" held on September 12th. A fandisc game on PSP "Vitamin X to Z" will also be released next Spring.
Vitamin X game official website
The original Vitamin X game was produced by HuneX in 2007. Four derived versions have been released on Nintendo DS, PlayStation2, and PSP.
Minami Yuuri is a high school teacher. She takes charge of class III-E. The class, so called "Class X", collects students who are doing poorly in study. Yuuri has to teach the meaning of study to the six leaders of the class "B6" (Baka 6) and let them pass the entrance exams for universities.