Gnosia lie. They pretend to be human, become close to them, deceive them, and one by one eliminate those that come to know them from this universe—.
On a drifting spaceship, the crew members faced against the unknown enemy Gnosia, which attack people, attempt a single strategy to resolve their crisis situation. That is, put the most suspicious people among them into cold sleep one person at a time, and deactivate all Gnosia that made their way onto the spaceship.
However, it is difficult to tell whether someone is a Gnosia or a poor soul made to be a scapegoat. Will the humans have the last laugh, or—?