In this world, everyone who has a good heart is guarded by angels to avoid crime and sexual abuse or other criminal acts that could damage human faith. You are one of the angels of the girl named Satou, but because you are a sniper you can only watch her from afar and not beside her but that is considered different by Satou

as usual you're on top of a distant building and watching Satou from danger Satou: “Hmm why don't I have an angel am I not good enough?” Cries