Altough highly unrealistic, its worth is in its raw pieces that craft a very tragic tale of love. What makes this Drama brilliant is the crash of an innocent and pure first love with the struggles behind their lifes plus the misfortune. Having in mind the history developement is very unrealistic its beggining was brilliant and absolutely raw. The kids cast made an oustanding performance and in general the first episodes are pure gold. However as the series progress it keeps graduallly falling on nonsensical situations and unnecesary drama until the end. Adult cast was Good but I think only Yoo Chun had the opportunity to shine. Until episode 15 or so it was amazing, even with the decreasing level of sense, however, after that I sincerely think there was no need for more.