Aika Sumeragi is the superhuman and beautiful main protagonist of Agent Aika, AIKa R-16: Virgin Mission, and AIKa Zero. She works as a salvager who works under Gozo Aida, and is the partner of Rion Aida.
Appearance
She appears as a beautiful young woman with red lipstick, blue eyes, and brown hair which she ties at the back of her head, and rather large breasts. Her main outfit consists of a long sleeve red jacket with white at the end of the sleeves, a white collar with a green bead, her golden bustier under her jacket, a tight red skirt, red high heels, and white panties. She has fair white skin. When she activates her bustier, her appearance changes to long blue hair, dark skin, a white bra, and white panties. She also, however, keeps the collar and the shoes in this form. At the beginning of the first episode of Agent Aika, she wears an orange bra, and orange panties. When infiltrating the Delmo base, she wears a gray tube top, and blue panties. In Aika R-16 Virgin Mission, she has shorter hair, which she wears down, and a long-sleeved, short red dress. In Aika Zero, she wears a white shirt and a blue tie underneath a long-sleeve red jacket, and a black microskirt.
History
AIKa R-16: Virgin Mission
Aika is 16 years old in this series. She starts her job as a salvager by her foster parent. Later she goes to school and is recruited by Eri Shinkai to go on a expedition to solve the mystery of Karen Minamino's past.
AIKa Zero
Taking place three years later, Aika and her two friends continue to hang out together at a restaurant. She is later roped into another adventure by Eri Shinkai to find the missing students of their school. She carries a tranquilizer gun, and later, a submachinegun-like weapon loaded with non-lethal bullets. Here we discover that she has a special power that may have a connection with Lagu.
Agent Aika
Aika showers in the first episode. She's beautiful, suave and sophisticated. She's a martial arts expert and a jet fighter pilot with the body of a supermodel. She's Aika, and she's one of the best secret agents in the business. Armed with her trusty, semi-sentient super-battle bustier, no risk is too great! Though she is the hero of the series, she is not above being brutal to her opponents, one nearly had her neck snapped (but recovered later) and others are slammed by her other form.