Agent Aika, known in Japan as simply AIKa (アイカ, AIKa?), is an adventure anime OVA series. It is about a Japanese woman named Aika Sumeragi (voiced by Rei Sakuma) who works as a salvager for companies that hire her, but gets caught up in a plot for world domination. The series was available in North America from Central Park Media, but now it has been licensed by Bandai Entertainment.

On April 25, 2007 the first volume of the three-part prequel OVA AIKa R-16: Virgin Mission, detailing Aika's time as a teenager, was released in Japan. A remastered version of the original series was released also, along with a special Live Action edition of Agent Aika.

Source: Wikipedia