"Becoming a Billionaire" introduces ways to become rich and through the process contains about 80 big and small secrets to success...
Oh Tae-Bong (played by Ji Hyun-Wu) lives in a small room on the roof and studies by himself to become the successor of a chaebol (business conglomerate). He believes that he is the heir to a chaebol and his rich father hid him away in his small room. Tae-Bong turned down an offer to work at a big company, while he got a job as a houseman in a hotel.
Lee Sin-Me (played by Lee Bo-Young) is a real successor to a chaebol, but still uses sample cosmetics and drinks cheap coffee from vending machines. She is driven to receive recognition from her father, who thinks woman should stay at home. She then meets Tae-Bong.
Meanwhile, Bu Tae-Hee (played by Lee Si-Young) has the perfect body and face and is a successor to a chaebol family. Chu Woon-Seok (Nam Gung-Min]) is the perfect prince of the high class.


Cast
Ji Hyun Woo as Choi Suk Bong
Lee Bo Young as Lee Shin Mi
Lee Si Young as Boo Tae Hee
Nam Goong Min as Choo Woon Suk
Shin Da Eun as Han So Jung
Jung Joo Eun (정주은) as Secretary Yoon
Yoon Joo Sang as Lee Joong Hun
Kim Eung Soo as Boo Kwi Ho
Park Young Ji as Choo Young Dal
Kim Dong Kyoon as Team Leader Yoo
Ok Ji Young as Bang Soo Jin
Sung Ji Roo as Woo Byung Do
Kim Ki Bang as Park Kang Woo
Park Min Ji as Kang Sook
Kim Mi Kyung as (Kang Woo’s mother)
Jung Han Yong as (Kang Woo’s father)
Lee Han Wie as Teriah Park
Park Chul Min as Hotel Captain
Jang Tae Sung as Hotel bellman
Son Ho Young as Suk Bong’s chaebol father (cameo)
Lee Won Jong as Suk Bong’s middle school maths teacher (cameo)
Choi Song Hyun as Suk Bong’s mother (cameo)