Manga 「Ground Defense Force! Mao-chan」

The first turtle-shaped alien to contact humans in 200X was protected by the Ground Guard, but laid four eggs a few months later. Three of them contained clover-shaped space objects, and the other contained letters saying, “I’m aiming for Japan.”

Two years later, as expected, aliens like dolls flew in to steal tourist attractions in Japan. However, the enemy was too cute to attack the defense forces who feared public criticism.

“Cute things are the only way to fight against cute things!” So the three chiefs of the Army, Navy and Air Force elected their beloved granddaughter to the Defense Force. Usually elementary school students can protect Japan by transforming themselves with the help of clover-shaped space objects and relaxing from aliens.