Born in Osaka, Tsukasa Aoi debuted as a uniform gravure model in the October 2008 issue of the magazine Bejean. In June 2009 she was cast as a regular in the Sun Television variety show Gung Gung Bone!, which was cancelled shortly later.
The same year, she made regular appearances on San-TV talk show Onagokoro and featured the segment "Tsukasa Aoi's Aim for the Top" in the Television Osaka variety show Idol Sniper 2. In December 2009, she starred in Aoi Shōjo, her first gravure video, and a second gradure video was released in August 2010.