Giulio Rosso, a former Gallian Army chef, was transferred to Squad 422 (the Nameless) due to repeated violations involving the unauthorized acquisition and use of rare ingredients reserved for officers. Under Kurt Irving's command as Number 32, he frequently operated as a Lancer or Engineer.

Orphaned young, Giulio's path began when a chef's bowl of soup saved him from starvation. This shaped his core belief: food holds the power to foster happiness and bridge cultural divides. His philosophy, "The meal is mightier than the sword," centers on culinary excellence as a tool for peace.

With the Nameless, Giulio actively experimented with local ingredients, creating dishes even amid combat. During a mission clearing Imperial troops from a Darscen village, he sought an ingredient for the traditional soup "kohakudake." When Gallian soldiers later rebuffed food offered by grateful villagers, Giulio countered by serving kohakudake to both groups. The shared meal eased tensions, demonstrating his conviction that culinary experiences transcend conflict.

Cheerful and sociable, Giulio formed quick friendships. Yet his habit of "borrowing" ingredients without permission persisted, defying protocol for culinary creativity. After his Nameless service, he traveled extensively seeking new flavors and traditions, continuing to forge connections through food, though a lasting romantic relationship eluded him.