AIKa: ZERO

Following the events of R-16, Aika is now 19 years old, making her 3 years older than in R-16 and 7 years younger than in Agent AIKa. An academy for girls has been experiencing strange occurrences. The cutest and most attractive females are gradually but steadily joining an internal club, but instead of a sing-in, they are just kidnapped by an odd being who seizes control of them through unethical ways. By chance, Aika was on her plane when one of these abductions happened, and she was attacked to stop her from getting any closer. Rather than being repulsed, she is curious about the cause of the attack, and an opportunity presents itself when her late R-16 partners decide to look into those abductions. The plot maintains the required level of action and genitalia flashing for Aika's series.