I binge watched The Master's Sun after convincing myself that it would be okay to start watching it at night (I was a little scared because of how creepy the ghosts looked in the trailer/music videos). But after watching the first 2 episodes, I felt a lot more at ease with how creepy all the ghost's looked.

I was hooked from the very first episode and there weren't really any slow points. I think the pacing was good, and even though each episode dealt with it's own ghost story (for the most part), the overall plot continued to move forward smoothly.

I figured out the overarching plot twist about half way through, which I was pretty proud of myself for being right. Haha! Honestly, the plot wasn't particularly obvious, I just thought about it intently and put pieces together to make sense of the plot twist. And don't worry - the plot twist isn't completely crazy or nonsensical, which is also satisfying.

So Ji Sub is really a treat to watch, by the way. I really loved his acting and I really respect how well he can portray such different characters. In Oh My Venus, his character was so different and he really pulled both off so well. AND I liked both characters for different reasons because his acting is just THAT good!
Gong Hyo Jin also deserves recognition because she did such a good job portraying different "people" when she was possessed by ghosts. *Meow* XD
Seo In Guk was also really nice to see again - I saw him in the Reply series and have been craving his acting ever since!
Kim Mi Kyung.......I have such mixed feelings about her character because in all the other dramas I've watched with her, she always played a character that was helping the main characters and giving her advice when she could. While I understand that the aunt was just trying to do what she felt was best for her nephew, it still bugged me that she was such a vicious (NOT evil, just cut-throat) woman in this drama. She portrayed it well, I just didn't like seeing her playing this kind of character.

The ending was wonderful and really REALLY nicely wrapped up. The only thing that bothered me plot-wise, was in the last 2 episodes where the MC's are having some emotional struggles that they need to come to terms with. Which I understood, I just wish that that process was a bit smoother.
Overall, I really enjoyed this drama for it's outstanding cast, pleasurable OST, and well thought-out plot. Don't let the ghost's scare you away!

***Please be mentally prepared before starting this drama, especially to those who are sensitive to serious topics such as child abuse/neglect. There were a couple of scenes that could make viewers emotionally upset.