Moon Chae Won and Lee Joon Gi both shown so realistic emotional acting and also the supporting actors which makes it a great cast ensemble. The directing, writing, storyline, cinematography, acting, and others (you name it) are worth to watching.
Both Moon Chae Won and Lee Joon Gi brought out the best in each other. They were casted perfectly for the characters they played. The directing is very meticulous which highlights every scene so that viewers can understand the story well. The writer (Yoo Jung Hee), did a great job to tell the beautiful story of the drama where it has many catchy lines, and it flows smoothly.