In the vast universe, vast interstellar space, and the crisis-ridden 21st century, the alien investigation team is ready to attack the blue planet Earth, which is full of alien creatures that covet it! Save mankind, support justice, and do our best for the future of mankind.
This story has nothing to do with the above.
The alien investigation team has a song that goes like this: "Ten humans, five idiots, three crooks, and two aliens, the team members stand up and arrest her."
In short, it is a HE Fukai Hyou story about fighting aliens and talking about falling in love.