The world has been contaminated at the hands of Iulus, mysterious invaders that suddenly appeared one day, forcing humanity to reduce their living space. The ones who boldly stand up against these invaders are neither powerful military forces nor weapons, but normal high-school girls.

They are the Hoshimori (Star Protectors), girls who bear the fate of fighting the Iulus, who attend Shinjugamine Girls’ School. One day, a lone male teacher transfers to the school and joins the girls in their quest to reclaim the soiled earth.

Today, as the sunlight filters through the trees in the schoolyard, the class bell once again chimes...

Miki Hoshitsuki

Voice Actor: Aya Suzaki

Birthday: March 15
A first-year high school student. Brighter and more energetic than anyone else, an innocent hard worker.

Subaru Wakaba

Voice Actor: Ayane Sakura

Birthday: May 4
A first-year high school student. A boyish girl and master of all sports.

Haruka Narumi

Voice Actor: Sora Amamiya

Birthday: September 23
A first-year high school student. A kind-hearted, sensible girl who is aspiring to be a doctor.

Nozomi Amano

Voice Actor: Nao Touyama

Birthday: July 7
A second-year high school student. Always wears the leading fashion and hates dishonest behaviour.

Asuha Kusunoki

Voice Actor: Mutsumi Tamura

Birthday: January 18
A third-year high school student. A thoroughly Japanese-style school council president with a stylish appearance and a sharp mind.