Giraud, sometimes called Jiro, serves as a draker aboard the airship Quin Zaza. He is the son of a draker, inheriting techniques and stories like the Glittering Dragon legend—a tale of a ship saved by the mythical creature. This heritage fuels his fierce pride in the profession, causing sharp reactions to criticism of draking or drakers falling short of his standards.

His appearance features long black hair past his ears and black eyes, later shortened. He typically wears a blue uniform with ten silver buttons, a black stomach pouch, and brown boots. Katja, whom he meets in Quon, cuts his hair before the Quin Zaza's departure after he rescues her from drunk drakers. This act symbolizes his transition to adulthood and sparks their close relationship.

Valued for exceptional eyesight and precise weather measurement, he maintains calm judgment during hunts and approaches draking with seriousness. His duties include scouting, often using a small gyrocopter for reconnaissance.

Relationships shape his journey. He admires Mika despite occasional disagreements. He mentors the rookie Takita, guiding her away from trouble and toward responsibility. His bond with Niko is brotherly, marked by Niko's joking treatment and effective work collaboration. Interactions with the reserved Vannie occur mainly in groups. His rescue of Katja initiates their meaningful romantic connection.

His character evolves from pride-focused to demonstrating broader maturity. During a dragon rampage in Quon, he acts decisively to protect the city. The haircut from Katja and their relationship further mark his growth beyond rigid pride into adulthood.