In the wake of the Heath Oslo incident, the US-Japanese anti-terror organization CIRS has entered the public eye. CIRS has been completely restructured, with its most clandestine operations transferred to a newly formed agency: SORD (Social Ops, Research & Development). SORD’s objective is to train a new generation of operatives to protect the nation from future dangers. To achieve this, the organization has set up a network of schools across the country. Mihama Academy, which had been largely abandoned following its sudden shutdown, has been repurposed as one of these 'specialist training schools'. This reformed Mihama Academy hosts a varied student body that daily hones their unique abilities—often through field experience. Mihama now arms the misfit girls enrolled there with firearms and live ammunition. Disregarding their own safety, these students are repeatedly thrust into hazardous extrajudicial missions—all in the name of the greater good. "We've been provided with a place in the world. That alone isn't enough - there wouldn't be any meaning in living, if that was all we had... It's not enough just to be made use of by others. I live by my own strength, and I fight to survive. That's the only way those of us who actually make it through can find forgiveness..." Regardless of how much life wears them down, what future lies ahead for these girls, who have themselves chosen the path of the gun?