Due to the high importance the three Rose families have in the development of the student activities within school, those who become "petites sœurs" of any of the mentioned families receive a functional "inheritance" through the "grandes sœurs" teachings, to adopt a position given certain circumstances. In this way, there are patrons recognized through the generations of the members of the Rose families. Still, after graduating, the "grandes sœurs" of the Yamayuri Council may continue with a fair participation in the events concerning their families, as shown in the novels.