In 2045, humanity's only hope to survive invaders called Irousu lies with the students of Shinjugamine Girls' Academy.

Set in 2045, humanity struggles to survive in a world overrun by mysterious invaders called the Irousu. The Earth's only hope lies with the students of Shinjugamine Girls' Academy, a school where Star Guardians train to fight the Irousu. Together, these brave girls work to develop their skills to fight against the invaders... provided they can pass class first.—Crunchyroll