Doomsday Army Girl Is Sweet and Wild

A low-ranking mercenary squad leader gradually became a doomsday heroine (local) tycoon (bandit) by robbing homes and houses. Bitten by a zombie? Take a bounty and earn vaccines! In short supply? Go out and rob the little sheep! My little brother got beaten? Brothers gather to play in the gym! Hit the iron plate? Friendship first, fighting second. All the brothers around me know that the captain has three treasures: a strong fist, an iron head, and being knocked down by the wind.