So, a limited series means that it will be a series with few episodes and no sequel. Then wtf was that credit scene? If it had been included earlier, I think it would have worked out very well. This would be the driving wheel that the plot needed to move and keep interest. The trailer was promising, so it was on my watch list. After watching the drama, I both understand and don't understand why this low rating. Yes, it's nothing new, I've seen other series with a similar plot, but so many series have come out that it's hard to find something new. As long as the plot is interesting to me, I don't mind. The rich think of themselves as kings and queens and look upon others of lower rank as parasites. I wished there was more emphasis on revenge instead of romantic drama. After all the topic was precisely about revenge, the problem of social hierarchy and violence in the school. Only at the end did they think to advance the plot with the credit scene, which had no place as a finale. It will remain a mystery what they wanted to do.