In the vast expanse of space, a state-of-the-art reconnaissance satellite launched by the UN Army drifted alone.
After the planet suffered two alien invasions, humanity decided to turn its watchful gaze toward the reaches of space.
The satellite equipment originally intended to deal with the Space Angel had not only proved ineffective against the Angel, but had also been utterly helpless against Metron's fleet.
Humanity therefore planned to commit more resources to space than before, putting an integrated satellite defense and detection system encircling Earth on the agenda.
The first satellite in the project had now been launched into space, one thousand meters from Earth, equipped with a high-powered anti-monster laser and radar based on technology developed by the Earth Defense Force of the M78 Universe.
Even if it could not intercept enemies in space, it could still buy Earth enough time to respond.
Now, in the command room of the UN Army's Space Force, several technicians were staring listlessly at waveforms on their screens that seemed as though they would never change.
At first, they had been a little nervous, afraid of enemies from space, but now they were thoroughly bored.
After all, even if a fluctuation appeared and they failed to react, the machine would respond for them.
Like the instruments used to monitor extraterrestrial radio signals during the great age of space exploration in the previous century, these signals remained forever lost in the noise of the universe.
A few of them were already thinking about where to unwind after their shift.
Yet none of them expected that something would happen today.
Suddenly, alarms blared throughout the command room.
The waveforms on the screens began fluctuating violently.
"What's happening? Did we detect something?!"
"The target is rapidly approaching Satellite One! Only 500 meters away, and still closing!"