The second half of the 21st century.
Human beings were in danger of survival without any means of resisting the indiscriminate attack by the sudden appearance of a huge alien invading weapon.
In the midst of a war situation where human weapons are completely out of reach, the ultimate weapon “fantasy embodying device” and its compatible young man, Hinoryusei, awaken from the huge cavity that spreads underground in Japan. Intercept. With an overwhelming victory, mankind has gained fleeting peace.
Therefore, the Commander-in-Chief of the Defense Force convenes girls who have the qualities of a fitter (brider) who fights with a meteor. With Honoka Tenkawa, Natsumi Hoshii, Sayoko Himetsuki, and Saie F., the Earth Defense Force Special Forces “Bureido ☆” The “Briders” were formed, and an earth defense operation to protect the earth from aliens was unfolded.
