Hanayome wa Nise no Chikai ni Namida suru

When Vivi learned that her kind foster parents were in trouble, she asked her estranged grandfather for help. But in exchange for money, her grandfather offered her the cruelest of conditions?she would have to marry Raffaele Mancini! Two years ago, the Italian duke rejected Vivi coldly, shattering her heart. But now, meeting Raffaele again, she can't resist his still-smoldering charm and spends the night with him... (Source: Renta!)