Forbidden love for my half-brother

Isabella has always lived a quiet life, focused on her career and family. But everything changes when her mother, Eleonora, organizes a dinner to officially introduce Andrew, her stepmother's adopted son, to the family. Although Isabella had met him briefly before, she had never been this close to him.
Andrew, with his magnetic confidence and enigmatic smile, awakens feelings in Isabella that she cannot understand or control. The problem? He is considered her half-brother, and to make things more complicated, he is engaged to Alicia, a woman whose presence commands attention wherever she goes.
While Isabella struggles against the growing attraction, Andrew seems to share the same forbidden connection, creating an unspoken bond between them filled with tension and mystery. Eleonora, always observant, notices the interactions between the two and grows concerned about the consequences of this budding relationship, which threatens to shake the family's foundations.
Caught between moral dilemmas, societal expectations, and buried family secrets, Diana and Andrew must decide if they are willing to risk everything for a love that was never meant to exist.