Much of the story of "Maria-sama ga Miteru" revolves around the , which acts as the student council. The Yamayuri Council meet in a building called the . Located within the school, it consists of two stories, including a meeting room on the second story. The Yamayuri Council itself consists of three offices, named after roses: , , and . These are also referred to by their colors; the is "Rosa Foetida", the is "Rosa Gigantea", and the is "Rosa Chinensis".