In the Kansai region, there are two schools located in the Hyogo and Osaka prefectures. One, Takizakura Girls' Academy in Osaka, was successfully branded through the success of the entertainment course selection idol club, while the other, Tsubakisakuhana Girls' High School in Hyogo, is an old-fashioned preparatory school. When two girls, who are daughters of the presidents of these two opposing schools, meet through idol activities, a big change is born in the small world that surrounds them. Searching for something more important than an already important promise... "The story of a School Idol Project that everyone makes come true" begins upon a brand-new stage. School Idols, let's start now!!

Having seen the Seisho, Siegfeld, and Seiran Play Exchange Program's "The Wartime of Farewells" through to success, Stella and the others have taken a big step forward as Stage Girls. Then, another exchange program begins. The name of their partner school is Romana Drama School. It is a newly established school that was founded five years ago. With the rumors of them snatching up excellent students from exchange programs, they possess a shady history. The play Romana has chosen is Oscar Wilde's "Salome", which was once banned due to its content being deemed radical and degenerate. To play Salome, one must steal others' brilliance and be a pure egoist with infinite desires. Appearing before the bewildered Stella is none other than Mikoto Aragami, her old rival from her time in Munich, Germany... "Stella Takachiho. I will steal everything from you, and play Salome."