Lee Je-hoon and Shin Min-ah work really well together in this fight against fate, time travelling drama.
The plot is pretty good, as dramas involving flitting around time are often messy, but this was quite well thought out.
The characters were ok, but I found constant references to Bap Soon irritating and Song Ma-rin was so needy at times. On the one hand she could be tough and quite arrogant toward So-joon in the early episodes and on the other behaved like a teenager. She also let Gun-sook order her around whilst at other times standing up to her. The character's behaviour was inconsistent.
Aspects of the story were a little too drawn out and given those characters 'in the know', the struggles to change the fate of the main two were not always as sensible as they could have been.
Not a bad watch, although for me, Lee Je-hoon made this drama work.