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!!
인기 아이돌 그룹 도쿄27의 센터 멤버 ‘미쿠’는 어느날 공연이 끝난 후, 좀비에게 물리게 된다. 그녀가 좀비로 변하기 전까지 남은 시간은 오직 72시간! 소문으로만 존재하는 좀비 치료제를 찾기 위해 고군분투하지만 악명높은 엘리트 좀비 헌터가 미쿠의 뒤를 쫓기기 시작하는데…