I would recommend you to watch it, because the plot is very different from other dramas. and the two main leads are amazing actors who I've admired for a long time.

I loved the storylines of the two main leads, but I didn't like the storyline of ''Kang Hae Jin. I watched it reluctantly at first, but eventually I just skipped his parts because I didn't enjoy them, and his story had nothing to do with the main character's story, so I thought it was very unimportant and unnecessary to give him so much screen time.

I also disliked the last episode because I think what they did was very unnecessary.

but overall I enjoyed the rest of the drama, so I would recommend you to watch it, but do keep in mind that you may not like every storyline because I didn't.