Of the high-rolling top 'hot celebrities' of the wealthy upper class in Korea's high society, Kang Hye Na is the one desired by the men, feared and hated by the women. Being the only successor to the largest conglomerate company, Kang San Group, Kang Hye Na has both the looks and the background. She is the owner of the 'Lady Castle' and lives a 'princess-like' life with her servants.

Daughter Ji-suk is now already a mother herself, but she'll always be a child in the eyes of her proud mom. The two decide to go on their first ever trip together. Over three days and two nights, their journey reveals the love and regrets, emotions and conflicts, that form a mother-daughter relationship.