Aika R-16: Virgin Mission

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.