One drama that I really feel for and relate to. No one character was perfect (but perfect casting!) . Small, subtle actions taken by one will leave an impact on the people around them. And yet, no one  can really be blamed. The way one reacts will always have a backstory to it. This highlights how we can never ever judge a book by how it seems. 

They really wrapped up the drama very nicely with the symbolisms and amazing cinematography . How the airport represents arrivals, departures, pit stops,  heartaches,  happiness, crossing of paths, coincidence, and how everything looks the same but deep down you know something changed.