Watch it because even if you might be a little wary of the plot as a whole it does work. You can tell the actors become more comfortable in their roles as the drama moves along and it makes it even better to watch. The writers avoid certain cliches by adding a twist to them. There is some really sharp and different dialogue in here between the two main characters, especially from the main male lead Kim Joo Won he has some real funny lines and then contrastingly some really (unusual) insightful ones too. Overall I would say just give it a go if you like romance and a little but not consuming fantasy.