Before starting this drama I honestly didn't expect much from it. Since it's said to be an office romance drama, I expected there to be romance, comedy, cringe and whatnot. But as I started to watch it I realized it's actually a slow burn romance with a little bit of comedy in it and both ML and FL actually act according to their age. Lmao. Their romance can be seen as being lovey-dovey but it's not what you can classify as cringe.

The story is simple. There is no plot twist and it's definitely not intriguing enough to keep you hooked all the time. It's just what a slow burn romance is expected to be. It takes time for the leads to build an emotional connection and once they finally get together you can't help but swoon over them. However this drama managed to keep me hooked from the beginning, maybe because I was going through a drought of good romantic Kdrama for a while.

And while I keep saying that it's a slow burn romance the story itself is not slow at all. The pacing of the story was perfect. Every character was given enough screen time to tell their stories. One thing about this kind of drama is that by the end of it, you end up understanding most of the characters from their perspective and She would never know executed that part really really well. On that note, Lee Hyo Joo's character development was definitely one of my favourites. Another thing that I loved about this drama is the bonding of ML and his eldest sister with their niece. Their relationship might be the sweetest part of the story.
This drama somewhat shows you how karma and reality work. I won't say how, as you watch the drama you'll understand that part on your own.

As for the acting, first let me start by talking about Rowoon. After this drama, I can't see him as an idol-actor anymore. He has evolved his acting skill a lot and you can clearly notice that in this drama. He brought Chae Hyun Seung's character to life! After finishing the drama I couldn't imagine any other actor playing this role as perfectly as him. As for the FL, it was my first time seeing Won Jin Ah as an actress and she did a great job. Rowoon and Won Jin Ah were an unexpectedly good pairing <3 Wang Bit Na as ML's eldest sister was straight up ELEGANT. Her hairstyle, dress up and the way she talks make you believe that she is the epitome of a classy lady. Whoever was the fashion designer of this drama deserves a raise.
All the other actors/ actresses were good in their respective roles as well. So I would say the casting was perfect.

The music in this drama was soothing and beautiful. props to "I live in your eyes" ost for making its way to my most listened ost of all time list :D

As for rewatching, I am giving it an 8, because I am not the type of person who watches a drama more than once.

Finally, my advice would be that you should give She would never know a try only if you want something really soothing, heartwarming, not so complicated and beautiful^^