Storyline is too slow. I watched this from 1st ep until 20 ep, at first it feel excited to wait every week to watch because I want to know who is naksu at the past time & who is Bu-yeon and why naksu has been trapped in Mudeok/Bu-yeon's body. At 9 ep, we knows that Naksu's father has been trapped by Jin Mu and become wild after Gil-Ju told her about what really happen to her father. Also at 8 ep, Lady Jin should know that Mudeok/Bu-Yeon is her daughter because something happen at Jinyowon while Mudeok/Bu-Yeon entering Jinyowon for the first time. Unfortunately, Lady Jin still never know that Mudeok/Bu-Yeon is her daughter eventhough Mudeok/Bu-Yeon called her "mother" before she get killed by Lady Jin at ep 17. Until the last ep 20, her mother still confused/refused that Mudeok/Bu-yeon is her child. 🤷🏻♀️ And then, at ep 20, why Park Jin/Songrim didn't killed Jin Mu at the first place or find him after they know that Jin Mu doing a black magic to change people soul? I can't accept Jin Mu used black magic to control Naksu's soul and made her killed people on last ep, this bcs Naksu has changed while she is in mudeok's body and be kind to the people near her after she sacrified her energy to ice stone in ep 19 & want to live as normal people without power. This is not fair for her to be hunt by Park Jin after been controlled by black magic. Jin Mu used her to be blamed & been hunted by Park Jin at last episode and become sad ending. Poor to Mudeok (Naksu) bcs no one knows that she has been controlled by Jin Mu using black magic. This drama is very excited to watch from 1st ep until 17 ep, after that it just feel that this drama has never ending. I think the writer only want to regain the view not focus on the storyline. What should end early become more plot twist to make this drama more longer than usual. Not excited to wait for season 2 if the storyline still hanging here and there. 🤦🏻♀️