A story centered around the Twelve Jewels of the Demon Woman. Since ancient times, an organization known as Augres has been attacking people. To oppose this threat, a special anti-Augres unit was established. Technos Academia is a specialized training institution. The protagonist, Momo, attends the school - commonly known simply as the Academy, and is one of the unit’s members.

Today, another urgent report arrives from the command center: “Augres has appeared!”
Armed with new equipment, the team heads to the scene... but what awaits them there?