Every city is controlled by a supercomputer; when one goes haywire, the citizens have one hope: Kei and Yuri.

Cosmo Plane Service has fallen victim to two suspicious accidents and now they're launching the Tenan I Spacecraft, their most expensive ship yet.

The leader of a crime syndicate on Planet Vega holds the Golem Poker Chip, which brings good luck to anyone who owns it; Kei and Yuri have been sent to infiltrate his estate and bring that chip back into the hands of the law.

A cat has run away, but it's not just any cat - it's Guillaume De Malatesta XIII; if the girls can't find him, the city could be flattened.

Kei and Yuri's ship starts going haywire; the main screen begins flashing an Execution Countdown, and a ghostly ship appears.

To safeguard a priceless prism being delivered to Caine Galaxy, 20 different ships are deployed, but only one of them has the actual gem.