Aika R-16: Virgin Mission (stylized AIKa R-16:VIRGIN MISSION) is a Japanese three-episode OVA series animated by Studio Fantasia. Developed as a prequel to the Agent Aika OVA series, it was released on the tenth anniversary of said series. It takes place ten years prior to the events of Agent Aika and follows the story of Aika's first mission when she is 16 years old. The series was followed by a three-episode OVA sequel called Aika Zero where she is 19 years old. As with its predecessor, both series are known for their abundance of fan service in the form of panty shots and nudity. Aika R-16: Virgin Mission was acquired by Bandai Entertainment.[1]
Plot
The mini-series follows 16-year-old Aika Sumeragi, who recently got her C-class license to be a salvager, a person who searches for treasure among the ruins of the Earth's cities which have been submerged following worldwide earthquakes. However, at high school, she is regularly late for class and then her posters advertising her salvaging services are taken down. However, one afternoon, she is invited by Eri Shinkai, the class president, to join her Treasure Hunting Club where they look for the coordinates hidden away in a tattoo on classmate Karen Minamino. Aika gladly accepts, but during the trip some of her schoolmates and even their club advisor attack them in an effort to try to capture Karen. Aika defeats the girls and discovers they are being controlled by some devices implanted in their bodies. As they approach the destination, Karen starts acting strangely as if she remembers being there before.