Iwashima Manami (岩嶋雅奈未) is a former member of SI☆NA and HAPPY! STYLE. She auditioned for Morning Musume's 7th generation in 2005, but failed. Afterwards, Iwashima joined Hello! Pro Kansai and became an official member of SI☆NA in 2008. SI☆NA disbanded in May 2011, After the disbandment of SI☆NA, Iwashima released a solo single. She announced her retirement from the music industry on February 26, 2013.