Chuuta Kokonose, an orphan living with his aunt, is Chuuta. He has had a voice since he was a child. But he is a normal boy until a strange-looking creature follows him home and teleports to a world full of more amazing creatures. Rein Brickke, Chief of Solar System Department tells him that he has been selected by the computer to be a candidate for the police force. Chuuta’s school’s misuzu Sonokata is a young girl with an angelic appearance and ill temper. Rein Brickke, who happens to be one his subordinates, decides he’s not suitable for the job. After being shocked, Chuuta decides to take an aptitude test to prove Misuzu wrong.