Aikatsu Planet! Episode 12 English Subbed Episode Title:High School Lullaby.Episode Description:Having revealed that she is Hana, Mao's points have been reset. Although Mao was fired up about raising her rank to participate in the Planet Princess Grand Prix that determines the top idol, she fails an exam and has to take supplementary lessons. In order to encourage Mao who is feeling down about not being able to concentrate on Aikatsu!, Shiori and the others execute a certain plan.