I love that their love could last through out time! It's so sweet!

Wow the ending was so confusing. So did they switch back or not? I was waiting for the whole switching back part. The ending really sucked. It left me with so many unanswered questions. The only good part of the whole drama was Gong Yoo. Well I admit it started out good but once it hit around ep 14 it just went down hill.