1_the reason i watched this drama:i love both Yoo In Na and Ji Hyun Woo. 2_the review : this drama was perfect it mouved every emotion in me (happiness,sadness,scare,expectation) it's defenetly one of the best dramas i watched because the story is entresting even the fact that there are other dramas about time traveling but this one realy toped all of them the music is is also great. it's defenetly a drama worth watching.