Description:

In a world where ninety percent of humanity has died from a virus, and the rest are doomed to live in masks for the rest of their lives, a girl appears who does not wear a mask. Who is she, where is she from, and what will her fate be like?

Alternative Titles:

Sokushisei Kaze Shoukougun, 即死性風邪症候群, Instant Death Cold Syndrome