Due to a large amount of debt, Jang Eun-young and Kim Yoon-jung, who reluctantly contracted with a suspicious elderly couple.
However, that couple is actually in a master-servant relationship and reaches out to the mother and daughter for a different purpose.
The wife of the elderly couple, who looks good-natured, is actually a slave of another younger man.
She manages and tutors the mother and daughter for the man she loves and serves as her husband and master.
