Some ppl thinks this drama is boring n dont have an actual great ending but trust me when u will understand the storyline u will love this drama ....some of the reviews says that the female lead was sis of male lead (moo young) but this isnt true yoo jin khang (female lead) is not his sis (male lead) but they used to live together when they were kids but moo young thinks that she is his sis just buc he lost his memeory of his childhood he was told that she is his biological sis by jung se ran...but agn i will say plz watch this epic drama its vry vry nice ...n i rly rly love the story line