Riku Mao Headquarters (Firm)

Mao-chan is a second grader whose grandfather is the Chief of Staff of the Ground Defense Force. She has been trained to become a valuable member of the force since she was born. When she turns eight, she, together with her friends, form the Elementary School Defense Team. They protect the land, the sea and the skies. These pint-sized girls do their best to protect Japan from "cute" alien invaders.