Ms. Shimamura is a minor supporting character in the anime Gate Keepers. She serves as the dormitory leader, or dormitory head, of the girls' dormitory at Tategami High School, which also functions as the secret headquarters for the Far East branch of A.E.G.I.S. She appears in the episode "Infiltrate the Haunted Female Dormitory!", where her primary role is overseeing the dormitory and its residents. As an adult female with black hair and black eyes, she holds a position of authority within the school's living quarters, interacting with the female Gate Keeper agents who stay there. Further details about her background, personality, motivations, relationships, or development are not elaborated upon in the series. She does not possess any special abilities or participate directly in combat, instead acting as a background figure who maintains order in the dormitory environment. The descriptor "Phone Message" may refer to an unrelated minor role where a phone message is delivered, but no additional character information is available for that instance.