This series was really promising, some plots that were introduced in the first half of the season could've been really avant garde for a kdrama, but instead the writers went for the safe road and gave poor endings or resolutions to them. Yu-Mi's mother, Jo Mi-Hee being one of them, she not only made her daugthers life a living hell in high school, but she kept doing it, even going to national television to throw her daughters job and reputation in the trash, well not actually, because bad things in this drama doesn't really seem to have that big of consequences, which just made her character even worse, because she was just...annoying, she was there only for the purpose of being annoying, that's it. If you want to watch this series, watch it until half of the episode 10 and pretend that's the end, after that, I think the writers gave up on this drama and started to just write random things with no actual sense.