He takes pride in the fact that he practices Noblesse Oblige unlike other chaebols who like to power trip.

When the "perpetrator" of an accident involving his car, Seo Ji-An, is later revealed to be his younger sister, 'Choi Eun-seok', his life takes a new turn.

Then, like a miracle, she gets a chance to reverse her life as the daughter of Haeseong Group, Choi Eun-seok.

When her twin sister enters the chaebol family, she learns the secret behind her birth and becomes confused as she is the real Choi Eun-seok.

He previously had a successful life as a self-made businessman, but after going bankrupt some years earlier, he has been working as a day laborer but struggles with discrimination due to his older age and his wife being vocal of her shame at his plight.

She constantly gives her husband Tae-soo a hard time due to his having gone bankrupt - she is upset and disappointed, and she is terribly worried about her children and how they struggle to survive.

Burdened with having to help pay off his father's debt, he hides his own struggles from his family and will do anything for them, including sacrificing his own happiness.

[10] It went on to become the fastest to reach the National Drama level of 40% rating (41.2% in 30 episodes) among KBS2 TV series in the same timeslot.

[14][15] The series has been noted for highlighting current social issues in South Korean society, such as the breaking down of the traditional family unit in more recent times, discrimination against older and lower to middle-income workers and the struggles faced by the "N-po" generation.