Probably the best Kdrama series ever! The lead actors were so good and easy on the eyes, their wardrobe is superb..all aspects of the series are outstanding. It made me fall hard for Gong Yoo again (first time was in coffee prince). His chemistry with kim go eun was great. The second leads Lee Dong Wook and Yoo In Nah were also good, such a beautiful couple. I have actually watched it 12 times