Yuko is a young alien girl who escaped to the world of humans. After meeting Kazumi, a human girl, at a rock concert, the two decide to go to Kazumi's apartment to hang out. Before Yuko even takes off her shoes, however, she leaves through Kazumi's TV with her trusty cybernetic steed, FACE, and into another dimension to fight a retaliatory war against hordes of evil monsters, and the tyrannical dictator of Yuko's world.