THRUD is a 3D air combat game that combines character collection and danmaku (barrage) shooting. In 2004, xenomorphs blocked the sky. The world changed and mankind lost the right to rule the sky. In a new era where the sky has fallen and the earth has been polluted, young girls named Sluad ride a magic broom-like "style staff" to fight, vowing to regain all that mankind has lost.
They rely on, in addition to courage, is located in the throat of the mysterious crystal - the core source.
These girls, become soaring in the sky of the Valkyrie.
With beautiful blue-eyed girls, singing in the sky.
"Can you lead us to true victory?"
A few years after the war between humans and Xenos, a young girl named Faluri met "you" and witnessed the myth and history of this era with all the THRUDs in the world.
