Korean drama loves its escapism and light entertainment, so a series treating those as gospel is nothing new. This escapism, however, knows the audience it goes for. "Entourage" is an odd case of a series which feels inherently inappropriate for Korean drama and that is sadly the least of its problems. Let us take a look at this regretful mess in full.
As someone who has not watched the original series I cannot be sure about the story or approach in it. What I do know is that it is male-centric in story and from what I read in target audience as well. The Korean "Entourage" is a work which mostly seems built for offering cheap thrills and giggles to teen- and teen-minded men, making it feel very removed from the typical Korean drama viewer.