In her quest to rule the world for the next thousand years, Freya sends an undead army to attack the city of Prontera, which leads Loki and Chaos to reluctantly join forces.
Chaos and Loki join forces to protect the people of Prontera while Fenris and Iris guard the powerful heart of Ymir from Bijou the witch, who wants to deliver it to the power-hungry goddess Freya.
The master assassin Loki seeks revenge upon Chaos for the violent deaths of all the guild's members, while Skurai, who framed Chaos for the massacre, hunts him as well.
