I term this drama a 'classic'. This easily tops any favourite Asian dramas I may have had, even Korean ones. All the casts are amazing, entire script and plot are amazing. Big kudos to the director for being able to grasp and portray the entirety of this beautifully written drama. I am in love with the two main leads. This isn't a 'romance only' drama and has its own complexity, tragedy, and branching out so many of you may find the first two episodes a little slow but trust me and continue through this, this drama is a GEM.
Also has a huge rewatchable quality. The complexity of characters you may have missed starts becoming clearer and the drama becomes even more meaningful when you rewatch it. In conclusion, I am OBSESSED.