The Secret Wife

Rosie, who grew up in an institution, has finally discovered her biological father, Anton. But he dies shortly after they meet, and Rosie is approached by her father's adopted son, Constantine. According to the will, Constantine is to receive his inheritance on the condition that he marries Rosie. But he believes that Rosie is his adoptive father's mistress, and he treats her coldly… Source: Harlequin