Strange star-shaped beings from the planet Paira begin appearing in Japan, causing panic and confusion among the residents. These celestial entities, concerned with Earth's impending doom, have arrived with a dire warning. Through a series of mysterious sightings and strange happenings, the Pairans attempt to communicate their message to humanity. As scientists and government officials scramble to make sense of these aliens' true intentions, Dr. Kamura, a prominent astronomer, plays a key role in deciphering the enigmatic signals sent by the Pairans. He teams up with reporter Hikari Aozora and Professor Isobe, who share a growing concern over the impending catastrophe hinted at by their unearthly visitors.

Despite initial mistrust, the otherworldly beings manage to convey the gravity of Earth's situation. Through various attempts at communication and using advanced technology, the Pairans strive to forge an alliance with humanity to prevent a cosmic disaster. The Pairans reveal that a rogue planet is on a collision course with Earth, threatening to obliterate all life. As skepticism yields to understanding, human cooperation hinges on their ability to overcome fear and unite for a common cause. The mission to avert planetary destruction leads to desperate measures, compelling characters to confront both external threats and their own moral dilemmas.