[Showbiz Korea] Great manners through the TV series 'Rich Man'! Interview with OH Chang-seok(오창석)Watch on
![Watch [Showbiz Korea] Great manners through the TV series 'Rich Man'! Interview with OH Chang-seok(오창석) on YouTube](https://i.ytimg.com/vi/8OQOg_VGLhQ/maxresdefault.jpg "Watch [Showbiz Korea] Great manners through the TV series 'Rich Man'! Interview with OH Chang-seok(오창석) on YouTube")
