In the bustling trade hub of Regalo, the Arcana Famiglia safeguards the island as a vigilante syndicate with supernatural abilities granted by Tarocco, tarot cards embodying the Major Arcana. As Mondo, the organization's leader, announces his retirement, the successor must emerge victorious in the Arcana Duello, a fierce competition among members wielding Arcana powers. The champion not only seizes leadership but also earns a wish and the hand of Mondo's daughter, Felicita. Refusing this fate, Felicita joins the Duello with her friend Liberta and cousin Nova, determined to carve her destiny and defy tradition.