I can't deny that I search GTOP or gdragon tags a lot. And, I found that they are very interesting. Ji oftenly portrayed as a cute, innocent boy in a fluffy story while Seunghyun is the manly boyfriend in GTOPs. In TOPxOC or TOPxYou, he is often described as this romantic stoic man. In gdragonxOC, he is a ed-up idol who's mentally ill or mostly has anger-management issue. I always like those plots and characterizing, but still looking for something 'different' and 'interesting'. 

Now, I stumble to one of a story that the OC is a dirty 'papparazi' who's willing to do anything, I mean A-N-Y-T-H-I-N-G just to get the juiciest scoops. She manipulates, sleeps around, betrayes, and God knows what else just to make headlines. It's getting interesting (because I think it's one chapter still developing) how the story would continue and grow. What kind of girl is she? Why does she do things like that? What kind of man G-Dragon/ Kwon Jiyong would be portrayed? How about the rest of Bigbang members/ YG artists?

My point is.. maybe writers can got stuck to make new and newer characters for an Idol. Because we all know, a good character (add it with good plot) will make an incredible story. However, I think it could work if they change the OC characters from which usually a 'typical nice' girl or 'as mental as the idol' to something else that more daring or wicked or plain evil.

Again, that's only how I see it. :)