Chuuta Kokonose is an orphan raised by his aunt. He's had a voice in his mind for as long as he can remember, but other than that, he's a typical boy—until a strange-looking object follows him home and teleports him to a land full of more fascinating creatures. It's a space police station, and Rein Brickke, the Chief of Solar System Department, informs him that the computer has selected him as a viable candidate for the police force. Misuzu Sonokata, a girl from Chuuta's school with an angelic face and a bad temper who turns out to be one of Rein Brickke's employees, believes he is unsuitable for such a position. Chuuta, who was first surprised, chooses to take the aptitude test after being urged by the voice in his head and to prove Misuzu wrong.