"Birth ~Debut~" is an OVA created using the three characters—Ito Aki, Fujimura Saori, and Tanaka Kumi—from the popular PC game of the same name (an idol training simulation), which revolves around nurturing three high school girls who barely passed an idol audition and became managers of their own small production company into top idols. The main story is structured as a drama starring the three girls after their debut in the entertainment industry.