Zombie Hell: My System Forces Me to Save Beauties

A virus turns Grayhaven's population into zombies. Ethan Shaw was working as a guard on an armored cash transport when it broke out. He was twenty-six, single since birth, and had never held a woman's hand. He lasted twelve days before the undead got him. He opens his eyes again with the Apocalypse Convoy System awake in him. The system unlocks a function every time he rescues a woman. The first unlock is an armored vehicle, and the rescues after that give him the abilities he needs to keep it running. The ruined city is dangerous and so are the people who survived in it, and Ethan gathers the women he pulls out of both into a convoy that keeps moving.