Hong Se-na

Hong Se-na is female villain of Rooftop Prince is stepsister of Park-Ha whom she jealous because Park-ha was her father's favorite. because her mother and Park-ha become friends. she also tried steeling Yi Gak from Park Ha but in the end her lover Yoon Taemu attempted murder Park Ha, Sena realized her mistakes and give liver transplant to Park Ha with help of Yi-Gak in the end she apologized to Park Ha what she did her for years and ready surrendered herself to police as she hugged her two mothers.