Reina Tanaka
Michishige was born in Ube, Yamaguchi Prefecture, Japan. She joined Morning Musume in 2003 along with Eri Kamei, Miki Fujimoto, and Reina Tanaka, who all debuted with Morning Musume on the group's nineteenth single, "Shabondama". In 2005, she was assigned as mentor to seventh-generation member Koharu Kusumi, until Kusumi left the group in December 2009. Michishige was also a member of the Hello! Project unit Ecomoni, along with former Morning Musume member Rika Ishikawa.