Cho Eun-ja is the president of Club LaLa, which has been a family business for three generations. It used to be a very popular club but not anymore. Now the club is in heavy debt to Eun-ja. To bring back the old days of glory, Eun-ja tries desperately to keep the club afloat while the owner of Club Nemo wants to take over LaLa. Club Nemo is also a family business and the KIMs have been rivals with the Chos. KIM wants to put an end to their rivalry by buying LaLa and building a department store. So he sets traps to force Eun-ja to sell the club. He first makes Eun-ja take out a private loan and, he snatches the only popular singer and last hope of LaLa. LaLa is thrown in a state of turmoil as it ends up on the verge of bankruptcy. As the last resort to save the club, the four girls decide to stand on the stage themselves as a dancing group named "Oh! LaLa Sisters". Thanks to their fabulous performances, they finally become popular.
| Actor | Role |
|---|---|
 Lee Mi-sookNot listed | Not listed |
 Kim Won-heeNot listed | Not listed |
 Min KimNot listed | Not listed |
 Hong Eun-heeNot listed | Not listed |
 Hong Ji-youngNot listed | Not listed |
 Kim Hyun-sooNot listed | Not listed |
 Park Ji-aNot listed | Not listed |
| KKim Mi-sungNot listed | Not listed |
 Kim Bo-sungNot listed | Not listed |
 Park In-hwanNot listed | Not listed |
 Kim Yun-seokSachae Quik | Sachae Quik |
 Kim Su-hyunNot listed | Not listed |
| LLee Hyun-soonNot listed | Not listed |