I've come across this drama many times, and for some reason, I always put it off. Maybe I needed a good enough reason/review to watch it? Maybe I needed to be strapped down to a chair and held against my will just for the first episode, and then after, be given the choice to cotinine voluntarily? Who knows. But I did watch it. Willingly, if I may add. So here's what I'll say to you, WATCH IT ! To put it blankly, it's a weird one. A drama that will have your head FIGURATIVELY spinning with so many questions, comments (cough, cough), and emotions, but in the best non-nauseating way! All of the characters will leave an imprint in your existence, whether you forget it is up to you, but the two main characters will probably leave the most impactful influence. It's been two days since and I still think about Ji An and Dong Hoon and the other fabulous characters we were gracious enough to meet. If you want a quality drama that will leave you with a better understanding/sympathy for humanity and existence, give this one a try.