I am E.T.A.I. E.T.A.I. (Extraterrestrial Artificial Intelligence) is the bodyguard of Miyu Shiratori of mysterious origin in AIKa Zero. E.T.A.I has an appearance of a girl with dark hair. She's the tallest girl in the series (except Giant Karen from R-16). Her breasts are the size of Aika Sumeragi's entire upper body. Not much is known about this tall, silent, beauty except that her super strength was enough to subdue Aika Sumeragi, bearhugging her with one hand on their first encounter and holding her up by the throat later on. She also possessed the same alien tendrils as Miyu Shiratori, who she has a close relationship. It is implied that Miyu was her first probe victim. The Alien tendrils seem to live within her, and she has a command over them. When facing Aika, she seems to have a preference for squeezing her unconscious, on their first encounter crushing her against her huge frame. She is loyal to miyu and she is a lover to miyu. She’s her right hand woman. They are evil and supports female supremacy