This is a good story, I almost crying after the half episode I am not expected the plot twist like that, I like how the main lead always do the best thing for her but it so sad to know he did everything secretly. At first I thought its gonna be cliche time travel story but its not. It full of plot twist. The story focusing on how female lead did always did the best to prevent the incident from happen but who knows the previous accident cannot change the current life time. Even its not quite happy ending but it is a good story line. Both actor and actress are good and have chemistry. I also like the 2nd lead pairs.