Eiko is an alien girl with a unique superpower. She wears an amulet that can sense when men are attracted to her. Using this amulet she can transform into a superhero, Star Virgin, and use her super powers to protect herself. Originally coming to earth to sightsee, Eiko has to save the world from killer robots and protect her nerdy companion.

A 1984 direct-to-video tokusatsu short film produced and distributed by Daiei Video. The film is roughly divided into two portions; in the first, the main character speaks directly to the audience and introduces several pilots for the movie, which are played in their entirety. These include The Mighty Lady—an 8-milimeter student film produced in 1983—and two 1984 films simply titled Mighty Lady. This is followed by the film's main body, an original story in which Mighty Lady attempts to live life as a schoolgirl, then fights a giant robot.