This story has no male lead. The heroine does go out to kill zombies, so she won't be staying in the village all the time, but the village remains the center of the story. If that's not your thing, feel free to skip it. Ordinary people can fight zombies too. They protect their families and build a paradise, venturing out to fight zombies and train themselves. In the apocalypse, family is, of course, the most trustworthy. Ye Xiao, whose parents died in an accident, and her older brother, who raised her, support each other through the end times. The kindhearted villagers who helped care for the siblings build a peaceful little home in the apocalypse. You can stockpile supplies, but hiding can't protect your family when the zombie outbreak hits. Ordinary people can unleash incredible strength for their loved ones, and everyone must protect the light of humanity.
Since you've created a secluded paradise, you should seal off the village. Either write a farming story about extreme weather, or add a radio station—for example, one that allows you to connect with someone from another time. If you insist on writing about human nature, I suggest changing the title.