Aika's story continues, she is now 19 years-old, 3 older than in R-16 and 7 younger than in Agent AIKa. Strange phenomena have been occurring at a girls academy. Slowly but persistent the most cute and beautiful girls are joining an internal club, but instead of a sing-in they just get abducted by a strange being that takes control over them by some indecent means. By coincidence Aika was flying-by on her plane when one of this abductions occurred and she was attacked to prevent her from coming closer, but instead of repelling her, she is intrigued about the attack origin and then the opportunity shows up when her late partners from R-16 decide to investigate those abductions. The story remains full of action and panty shots that are a must in Aika's series.