Seiryuu

Hot chicks with swords! What more do you need?

After being devastated in the third World War (known as The Third Division), Japan was divided in two. Several years after the end of the war, a crime organization called Vischio has taken control of the destroyed city of Toshima (formerly Tokyo, Japan's capital city), where they are holding a battle game known as Igra (romanized as Igura in the Tokyopop manga translation).

Ten years ago, an inscrutable and abnormal territory known as Hell's Gate appeared in Tokyo, altering the sky and wreaking havoc on the landscape. The heavenly bodies disappeared, replaced by false stars.

Middle school student Miaka Y?ki is under a lot of pressure to pass the entrance exam for the competitive Jonan Academy.