Afterschool becomes a fight to survive!

When Yura Yamato's roommate Sonora asks her to join her club, it quickly becomes clear that the girls of Stella Women's Academy are VERY different. It turns out that she belongs to a club known as C3 (which stands for Command, Control and Communications) whose main afterschool activity is playing survival games! It's not a typical teenage girl pastime, but Sonora and her trigger-happy friends are seriously into it. The question that puts her in the crosshairs of a dilemma is if she has what it takes to join up, stand up, and deliver in the face of friendly fire.