RoseMary's manga / #Drama(852)

[Summary] In 2028, human beings are almost wiped out by a heavy rain carrying a mutant virus. The streets are filled with wandering monsters, and the world becomes a living hell. A tiny minority of survivors have to hide in the underground city that is made up of subways. However, the main characters have to leave the safe place and try to save themselves in the deserted aboveground land.