In ogikubo, a city where humans and aliens live together and it's the only space immigration zone on earth, luluco is an average middle school girl who just wants to lead a regular life. one morning, her father, who works for the space patrol, accidentally eats a faulty sleep capsule and becomes frozen solid. to make things worse, luluco unintentionally breaks him, so she rushes off to his office for help. there, over justice, the head of the space patrol, hires her as an undercover space worker for investigations, in order to combat crime within her school. dressed in a space patrol suit and tasked with upholding justice, luluco tries to maintain the appearance of a normal girl who blends in seamlessly. however, she soon realizes that with the advanced technology and unwavering moral code of the space patrol suit, it will be harder for her to remain ordinary than she initially thought.