Twenty Five Twenty One deserves all the hype it gets. As far as K Drama as a whole concept is concerned, romance has always been a significant genre. And I believe that to this date, every other romance K Drama that has come before and after Twenty Five, Twenty One seems less important now that I have seen 25 21. This is a result of a masterful production. The rewatch value is only low because the drama felt that real. Otherwise it's a fascinating drama.