When the main character, Genkuro, who attends Takamagahara High School, is cleaning the corridor, Mari, the spirit who controls the cleaning, appears. According to Mari, Kuro, the chairman of the beautification committee, is a girl who can contract with the cleaning spirit as a member of the cleaning squadron, Cleaner, who has the power to counter the evil organization Gowarsky that pollutes the school. It is said that it has a mission to seek out and prevent Gowarsky’s ambitions to pollute the school.
In this way, the search for cleaning spirits with Kuro’s Clean Cleaner members began.
