In our future, there existed the greatest achievement of Mankind: the utopian city of Cena-Bula. In this city, people are clean, healthy, and virus-free. This is a city where someone can live forever.
And now everyone is dead.
Enter the Traveler, a being whose sole purpose is to discover what happened in Cena-Bula. By collecting clues and reading files, the Traveler begins to discover what happens. However, not everything is dead in Cena-Bula. Something still exists; watching the unsuspecting visitor. Soon, the Traveler learns what the citizens of Cena-Bula learned too late:
Cena-Bula is not perfect