The anime series has two Opening theme and Ending theme. The first opening theme "All My Love" and first ending theme "It's My Style" is performed by Yui Horie.
Japan is the nether assault by the Cute Aliens, and the authorities are in a handicap. If they send the security forces to attack such a lovable enemy, their approval will tumble. Because the aliens are so cute, adults would be seen as harasses if they have beaten up the aliens. And so they mobilize three cute girls to stop the aliens.