"La storia della Arcana Famiglia" is set on the fictional Mediterranean island of Regalo, where the Arcana Famiglia, a powerful organization, protects the island and its inhabitants. The Famiglia is composed of individuals who possess supernatural abilities granted by tarot-based contracts known as Arcana. These abilities are tied to the Major Arcana cards, such as The Fool, The Lovers, or The Magician, and grant their wielders unique powers. The story centers on a pivotal event called the "Arcana Duello," a tournament held to determine the next leader of the Famiglia and the protector of the island.

The protagonist, Felicità, is the daughter of the current leader, Mondo. She is a skilled fighter and wields the power of The Lovers, which allows her to see the bonds between people. Felicità is determined to win the Arcana Duello to secure her freedom and avoid an arranged marriage, as the winner of the tournament can claim any wish, including choosing their own path. Her childhood friends, Libertà and Nova, also participate in the tournament. Libertà, who possesses The Fool, is carefree and optimistic, while Nova, wielding The Magician, is more reserved and analytical. Both harbor feelings for Felicità, adding a layer of romantic tension to the competition.

As the tournament progresses, the participants face various challenges that test their abilities, resolve, and relationships. The story explores themes of duty, freedom, and the complexities of human connections. The Arcana Duello serves as a catalyst for character development, revealing the motivations and struggles of the participants. Mondo, as the current leader, plays a significant role in shaping the narrative, as his decisions and past actions influence the present dynamics within the Famiglia.

The series balances action, romance, and intrigue, with the Arcana powers adding a supernatural element to the conflicts. The relationships between the characters are central to the story, particularly the evolving dynamics between Felicità, Libertà, and Nova. The narrative also delves into the history of the Arcana Famiglia and the origins of the Arcana contracts, providing context for the current events on the island.

Overall, "La storia della Arcana Famiglia" presents a blend of fantasy and drama, with a focus on character-driven storytelling and the interplay of power, loyalty, and personal desires. The tournament structure drives the plot forward, while the exploration of the characters' pasts and motivations adds depth to the narrative.