 Together, they serve as the second game in the "Digimon Story" series, though they were marketed as games within the "Digimon World" series in North America.A strange virus causes an earthquake in the Sunshine and Darkmoon districts, damaging the access points to the Digital World and causing many Digimon to mysteriously degenerate into Digi-Eggs.In Dawn, rumors have spread that the Night Crow from Darkmoon City were responsible for the incident.