Oku was born on November 22, 1995, in
Tokyo, Japan. In 2006, she auditioned for
AKB48 and was cast to Team K. She was also a member of AKB48's subgroup Honegumi (the group was formed for a kids' TV show in 2007). She was transferred to Team B on August 23, 2009. Oku released a solo single named "Katatsumuri" in 2011. The song was used as the end theme to a
NHK Educational TV's anime called
Ojarumaru. She played minor roles in the AKB48 dramas
Majisuka Gakuen (2010) and
Sakura Kara no Tegami (2011). Oku graduated from AKB48 in April 2011. ==Discography==