As a commoners, it was a dream come true if you get to married with royal people especially Crown Prince.

Because of the past agreement between their grandparents, Tiffany and Siwon is getting married despite their status.

Tiffany's dream is shatters into pieces when realized Siwon is loving someone and doesn't agree with this marriage.

Despite his cold-blooded behaviour, she is trying her hard to win his heart back.