Doomsday: I Do Whatever I Want in a Shelter for Thousands of People

The doomsday suddenly comes and zombies are rampant. The survivors build shelters one after another in the ruins. However, these shelters can prevent zombies, but they cannot prevent people's hearts. The crisis of survival and the battle of human nature. Is the home on the ruins a restart of human civilization or a paradise for the tyrannical rulers? Humanity survived, but did not survive...