Considered one of the most beautiful girls in high school, Mikuru, a second-year high school student (a junior in the English anime), is described as being an "untouchable flower on the mountain" by the male student body. Her popularity among the boys, however, doesn't detract her from being very shy and easily embarrassed. Before being forced to join the SOS Brigade, she was originally a member of the Calligraphy Club. She's best friends with Tsuruya, who is also a second-year student. In addition to starring in the SOS Brigade's amateur-movie in the first episode, both Mikuru and Tsuruya were waitresses for The Acorn, a short-stop dine-in for fried soba that was run by all the girls in Mikuru's class during the school festival.
