First GO check out this bgm playlist of this drama: https://www.youtube.com/playlist?list=PLkVc1-euL9izak6JhizyzuvBXrnHSFONj

What I liked
The reason i started watching this drama was because of SF9's Rowoon. He's a talented actor and definitely did not give me a chance of disappointment. Even though he's always been the Haru-ah for me most of the time, his new personality and a playful attitude gives light to his other talents. Thought he deserves even more.

Jist of what I loved:
I love the slow and budding romance this story is developing yet I'm largely loving the side romance of chae hyun seung's(rowoon) 2nd elder sister[Wang Bitna] as it is invloving passionate strangers falling for each other which also brings me most of the excitement for watching the every episode. I really do wish that they show more depth in their story as well.
Not to forget the side story of the ML's 1st elder sister as the depth in their relation seems little absurd but overally it was way better than the main role's romance.

I gotta admit that this is the only drama where I found all other characters lives more interesting than the lead roles lol.

Overall,
Its a good story but I somehow feel that its bland and the bgm is very soft and the ost's are good. Give this a watch if you want to go for something light and delightful. Its an AVERAGE office romance drama so watch it if you have a lot of free time.

Can't say if its worth or not but its not bad to have some laughs and feel aesthetic at the same time.
I'm totally going to rate the most eye catching things I noticed below:-

Make-up Illustrations(9.5/10)
Clothing:- Aesthetic, Modern and Pleasing (9.5/10) [especially Wang Bitna's]
BGMs and OSTs (9/10)