While on a government mission far from civilization, the all-female crew of the spaceship Muze finds a seemingly lifeless ship, named the Zogne, drifting in space.

They investigate and stumble across numerous dead bodies as well as a single survivor — Flair Mytomeyer, an innocuous-looking girl, who is diagnosed with amnesia after being found in a sleep chamber.

The crew bring the girl back to the Muze and treat her with sympathy as a medical patient.

Hikari finally learns this secret after decoding the computer records, but not before the Captain and several other crew members have already succumbed to Flair.

Hikari and her sister attempt to destroy Flair with weaponry, but the alien seems invincible.

Seeking revenge, Hikari puts a Metrogria capsule in a pistol, re-enters the hold and shoots the alien, mortally wounding it.

She is treated by the crew of the Muze as a medical patient, although she can't remember what happened to her fellow passengers.