Omg. Literally the most beautifully detailed masterpiece I've ever watched. THe amount of history the main characters (Hyunwoo and Haein) have is incredible and adds on to the chemistry they already have.
They way they are so in love with each other is actually magical and I cry just watching their moments and tear up thinking about them, because their love is just so unimaginably deep.
I would say this drama has the genres romance, drama, comedy with some suspense/mystery. So, if you like any of these genres (which is me, I go crazy for romance and drama), then you HAVE to watch this right now. This drama will get you hooked and obsessed.