Every night Nero is plagued by dreams of a blue figure that utters inaudible words to him. Drenched in blood Nero and the figure combine, Nero wakes up in a cold sweat every night he tells nothing to Kyrie, she can do nothing but worry for him. The peace is broken demons of all kinds attack Fortuna, Nero jumps into action; after fending off the demon attacks Nero is confronted by a warrior arrayed in blue armour and wielding a large sword. Nero and the blue warrior battle, during the battle Nero’s Devil Bringer continually glows which sees to bother the blue warrior. Finally Nero releases his Devil Trigger, the appearance of the Nero’s blue demon ghost and the Yamato brings great pain to the blue warrior who than flees the battle. Nero confused as to why the blue warrior and the blue figure in his dreams react to his Devil Bringer searches through Agnus’s old lab to seek answers, finding none Nero decides to travel to Limbo City to locate Dante. During the battle with the blue warrior Nero obtains a new weapon, The Blue Knight a double edge blade that can cut through any metal and has the ability to separate into two long swords. Nero and Kyrie travel on motorcycle to Dante’s shop. Lucia hears the motorcycle and rushes out to see thinking it’s Dante, but sees Nero and Kyrie. Lucia explains to Nero and Kyrie about what happened to Dante and Nero travels to Dumary Island. At Dumary Island Nero faces off against some demons like the Chaos Knights and Frosts. He than reaches a gate similar to the hell gates in Fortuna, as Nero steps closer a voice echoes through the air, “Ah my begotten son, you’ve returned. Prove your worthy by defeating him.” Nero looks around to see where the voice came from and than spots the blue warrior, who engages in battle with Nero.