Honestly, I wasn't expecting much when I started watching it, but I got hooked very quickly! Why? Because of the characters. The premise of the story is quite interesting (more interesting than the synopsis lets you think) but for me, it fell flat quite quickly. The characters only are a reason to watch this drama They are wonderfully written and all the actors are doing an amazing job. The male lead's sister is one of the best character ever. She's crazy and over the top but in such a great way, you can't help but love her. Her scenes with his best friends are also some of the best (on a side note as a native French speaker, those French speaking moments were a mix of hilarity and wtf?!). The male lead's brother and his girlfriend came off a bit stupid at the start, but they grow on you quickly and are just adorable. Kim Mi Kyung (as the female lead's mother) is as amazing as ever. It's rare to see so much evolution in secondary characters in dramas. The were a great part of the show, and let's face it, I was quickly in more for the 2 other couples than the main one. The plot itself is quite good, I liked the revenge aspect and the repercussions were played out quite well. However, I found the story became a bit predictable after a bit. I just couldn't quite buy the whole "seeing the future" part, thankfully it's a very small part; I quite liked the reason behind it, it's such a great idea really, but the way it was explained seemed unnatural and forced. The writer(s) just told us part of the plot, a part that no one in the story should have been able to understand. This drama shows you the work behind sounds in movies/series, and that is quite interesting, I had never really thought about it, and you'll probably find yourself paying attention to all the sound effects in the drama like I did!