Alex Moretti

Alex is the leader of an extremely powerful and feared mafia. When threats begin to grow around him, he realizes that he can only protect himself by forging an alliance with the Almeida Clan, an ancient family with influence equal to his own. But the clan's patriarch imposes a condition: the alliance will only be valid if Alex marries Letícia, his youngest daughter. With no other choice to save his empire, he accepts. At their first meeting, however, Alex is displeased: he finds Letícia too young, immature, and spoiled, completely unsuitable to be by his side. Then, he has an idea and proposes a secret exchange: he wants to marry her older sister. The patriarch agrees, provided the fact is never revealed. Alex had never seen this older daughter—he knew nothing about her—but he thought she would be better than the first option. The wedding is quick and formal, and he only sees her after everything is official. After the ceremony, they head to their new home: a large, castle-like building perched atop an isolated hill.

He is the powerful head of the Italian mafia.
The Italian mafia is full of dirty dealings, with many international agreements and deals, always valuing loyalty, pride, and fair agreements.

She is the heiress of a powerful clan.
The clan itself has existed for some years, with secrets, agreements, and loyalty among its members; however, magic does exist, but only the elders possess it.