PekaBooU*
PekaBooU* was a short lived Japanese pop group, formed in 2013 consisting of two AKIHABARA Backstage pass members: Kaga Remi and Kudo Yume. The duo graduated from the café on May 31, 2013 to focus on the group, they officially debuted on June 12, 2013.
The duo broke up on November 4, 2013, apparently to focus on their individual careers. Kudo later auditioned for 9-bit, while Kaga later auditioned for Kago Ai's idol group.