Set around the luxury Penthouse Apartment with 100 floors.
Shim Su-Ryeon (Lee Ji-Ah) was born into wealth. She is now an elegant woman of the upper class and she is like the queen of the Penthouse Apartment. Her husband is Joo Dan-Tae (Uhm Ki-Joon). He is successful in business and real estate.
Oh Yoon-Hee (Eugene) comes from a poor family background. She works hard for her children’s success. She wants to belong to the upper class for her children.
|Eugene||Kim So-Yeon||Lee Ji-Ah|
|Oh Yoon-Hee||Cheon Seo-Jin||Shim Su-Ryeon|
|Uhm Ki-Joon||Shin Eun-Kyung||Bong Tae-Gyu||Yoon Jong-Hoon||Yoon Joo-Hee|
|Joo Dan-Tae||Kang Ma-Ri||Lee Kyu-Jin||Ha Yoon-Cheol||Go Sang-A|
Cheong-A Arts School
|Ha Do-Kwon||Kim Hyun-Soo||Jin Ji-Hee||Kim Young-Dae||Han Ji-Hyun|
|Ma Du-Ki||Bae Ro-Na||Yoo Je-Ni||Joo Seok-Hoon||Joo Seok-Kyung|