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The Saginomiya Mansion (鷺ノ宮家本宅,Saginomiya ka hontaku?) is a Japanese style mansion where the Saginomiya family lives. The Saginomiya family consists of four generations starting with Ginka, Kokonoe, Hatsuho and Isumi. Their employees include a large army of unnamed butlers and formerly Fumi who was hired briefly as Isumi's maid but was let go due to her lack of knowledge of Smartphones.