Private Succubus Cherry Petal Academy.Located in a city with a population of nearly 30 million, it is a school with complete facilities and beautiful campus. Girls (succinia) can enter and exit the school at will, while boys are completely closed. Only during holidays can they enter and exit the school freely.Although it is claimed to be co-educational, in fact, teachers and female students are all succubus who transform into humans, and only ordinary human boys will be admitted through the entrance exam.Through intelligence manipulation, the school creates the illusion of an orthodox private middle school with a rigorous academic style, so as to attract more serious and upbeat high-quality boys across the country.However, its true face is a place for young succubus girls to learn how to seduce and extract boys' experience. The boys inside are all covered with food rations.