The identical twins enroll in Shirasagi Girls' Academy with the sole purpose of joining their childhood friend's newspaper club. They utilize their synchronicity skills to solve cases and bring the seemingly lethargic club into the limelight.
During the war, Clockworkers were invented as killing machines aimed to eliminate as many enemies as possible. Though the war has ended, rogue Clockworkers remain at large, striking fear and destruction wherever they roam. Machina is a CWA agent whose mission is to eliminate these rogue robots, aided by her Clockworker partner, Deus, as they scour the country in pursuit of their targets.