佐谷霞巳はあなたがいないと生きられない

Your day begins before dawn.

Due to certain circumstances, you live within a fortress nestled between two walls erected to protect citizens from a mysterious outbreak that has ravaged the country.

Each day you wake up, fire warning shots from your machine gun, eat MREs, and then settle in for another night. For two years this has been your routine.

But then, everything changes. You rescue a survivor—Satani Kasumi—and shelter her within the fortress.