Suzy and Nam Joo-hyuk are great for acting in this drama. But, it's just I couldn't see spark and chemistry between their characters which is Dal-mi and Do-san. The fact that Dal-mi fell for Ji-pyeong's letters and helped her to go though her situation when she was having a hard time because of her family. It's not Do-san. Ji-pyeong deserves it, I think it was bias based because Do-san's character were played by Nam Joo-hyuk, sad to say that it was not him in the end.
* I Gave up on the 15th episode bc I couldn't stand with so much annoyance I am feeling. The story from the beginning went well, not until the lasts of the EPs. From Dal-mi's childhood up to when Ji-pyeong finally met her. And.. I love the story of Ms. Choi (Grandma of Dal-mi) and Good boy. That's the only plot that I loved. Because I don't like Do-san's cheating journey that turned him into a successful man. Not a good example. What a waste of time. A story that ended up a young lady accepted a trash man that didn't have improvement of himself personally.