Not sure if this is a revenge drama or a harem one. There are like 5 women lusting over the main guy. Fitting its title a "bad boy". All of the relationships seems to be written by a teenage girl in her fanfiction blog. Maximizing the cringe! It's borderline a comedy for how silly and goofy it was. It's the worst revenge drama I've ever seen. I read that the drama was cut short by 3 episodes because of Kim Nam Gil military service, this forced a ridiculously baboonish last episode which was the icing on the cake to make it a certified bad drama. Again, fitting its title.