Francis Scott Key Fitzgerald leads the American Guild and later the Renewed Guild after its dissolution. His ability, "The Great Fitzgerald," boosts his physical strength, speed, and durability by expending money, the intensity scaling directly with the amount spent. Green tattoo-like stripes manifest across his body and clothing upon activation. He possesses a tall, slender build with neatly combed short blonde hair and clear blue eyes. Initially, he wears a pink buttoned shirt, tie, and creamy yellow tailored suit and trousers. Following the Guild's dissolution, his attire shifts to a brown suit over a black long-sleeved polo shirt, paired with a cream-colored tie. His personality exhibits extreme pride and arrogance; he frequently boasts about his vast wealth. He reacts negatively to rejected offers yet demonstrates unwavering determination to achieve his goals. Despite this, he displays genuine care for his subordinates, emphasizing their protection as his possessions, and prioritizes his family above all. He is not inherently evil, driven instead by personal motives tied to his loved ones. Fitzgerald transitioned from poverty to immense wealth. He once worked two years to afford a gun, later murdering four people to seize their money. He married Zelda, and they had a daughter whose death profoundly impacted the family. Unable to accept the loss, Zelda fell ill and maintains the delusion their daughter studies abroad. Fitzgerald owns multiple conglomerates, hotels, an airline, and a railway company, amassing significant influence and resources. His primary motivation is resurrecting his deceased daughter and restoring his family's happiness. To achieve this, he seeks a mystical "Book" believed to alter reality, leading him to orchestrate raids on Yokohama. He declares willingness to sacrifice his entire fortune "down to the last penny" for this goal. After the Guild's collapse, his allegiance shifts pragmatically; he sides with the strong, eventually supporting the Detective Agency during conflicts, stating he joins "the team that seems like it'll win." He evolves from a self-serving antagonist to a more complex figure. While initially exploiting others for power and wealth, his actions increasingly reflect a protective stance toward subordinates and a desperate, albeit morally ambiguous, commitment to his family. This complexity is highlighted when he intervenes to prevent subordinate deaths, asserting ownership as justification for their protection.