First of all, if you're coming to this drama after Kdramas, like I did, be prepared to be a bit shocked and surprised. The love/sex scenes would never make it to Korean dramas.
Other than that, this drama deals with a fictional, out of the ordinary love story. All the actors did an amazing job. There are many issues presented, mostly about what's supposed to be the definition of a successful/adequate adult and about living life on auto mode versus being creative/out of the norm.
I'd just like to make a note after reading some of the reviews. There are still countries around the world that marry off their kids at 12 years old or maybe even younger. This fact is real. This drama is fiction. Choose what upsets you most. Personally I saw it as an allegory of how even though we grow up, some of us find adult living and expectations overwhelming. And even in cases where we do know what we want and don't want, these might be contradictory and require a different perspective/effort in order to fit in with the rest of the world.
