I really liked this drama. I liked how it get better from one episode to another and to mee it got excitinf from ep.4 The story plot isn't that unique it's revenge, love story and a innocent person go to prison you can find it in many Kdramas but this drama was different in how the characters developed and changed from good to bad character or the opposite in a realistic way, so I liked the development and that all the roles was very effective and there were no shadow role but all was effective in the drama and acted very well. I loved the ending it was strong in a simple way you don't need for a bomb and all die to have a strong ending. I like how it ended but I think it needed for more explaining so one or two extra episodes would be nice. The acting was supeeeer I loved how all act. Ji Sung acted very well he was amazing and his reactions was super especially when he laugh the cry, his acting was brilliant and I think this drama is one of his best performance . Jung Eum acted very well ad I liked her acting and I believed her. Bae Su Bin was so brilliant he reflects all the emotions, development and the details of his character I believed him. I love the music it was beautiful and I enjoyed it very much especially Ji Sung song. I can watch this drama again and again especially my fav. episodes. If you like melodramas and revenge stories you'll enjoy this and definitely will enjoy the acting.