This is must watch drama. So much interesting and holds a best storyline and concept even script and dialogues were so mesmerising and each dialogue teaches us the lesson in our daily life issues. This drama is a pure example about the darkest and poisonous truth of this world that how cruel this world tends to be , even blood relations turns against you and deceives you in order to cover up their bad deeds.ofcourse the main leads (lee jungi as wang so and IU as hae soo) they surely played every role very brilliantly and so realistically and literally acting of all characters including main role,supporting roles and minors was real and outstanding.to be very honest i don't like historical dramas because they are based on reality and obviously their aren't always happy endings so same goes for this drama too hahaha sorry for spoiler but the ending is so sad and gloomy that you will oh my bad you must have to cry a ocean cuz i cried a lot too but this amazing masterpiece teaches us that it is fleeting life and you have to fight your internal demons on your own and no one would be their to give you shoulder to lean on and in the end everyone leaves and u have to leave alone. In the end lee jungi, IU, beakhyun(exo) and jisoo including all drama crew did a marvellous job. Hoping for season 2 beacuse wang so and hae soo never deserved ending like this. As wang so in episode 20(final) himself said " even if we are not from same world. But i will find you my ..soo" . So this gives the hint to audience that don't lose hope and wait for season 2 .All the best and yeah one thing for sure broke people must stay away from it and if they wish too watch it than keep tissue roll with yourselves cuz this is something far beyond imagination