After her battle with Tzveta and Keheheh of the evil syndicate Amarariruku, Shy returns to Japan, where she encounters the enigmatic Ai Tennoji—a runaway from the Kansai region.

Their time together is cut short when the Amarariruku launch a massive attack on Tokyo, throwing the heroes into a state of emergency. As the hero of Japan, can Shy stand up to the pressure of defending her home turf...?