Rooftop Prince Season 1 Episode 17

In order to rescue Park Ha, eventually crown prince Lee Gak rushes to Tae Mu, and surrenders the mobile phone of Tae Yong to Tae Mu. Tae Mu destroys the phone once again. President Jang calls on Se Na and tells Se Na that she is looking for her daughter. On the other hand, Lee Gak is pondering over the fact that crown princess and Bu Yong are biological sisters in Joseon Dynasty, and speculates that Park Ha and Se Na are possibly biological sisters.