The plot of this drama wasn't the best. Truthfully I think they could of done better, I think the main thing that kept me watching was the entertaining of the musical world. There’s quiet a few of the reasons that keeps frustrating me was how idiotic the characters could be sometimes. Also feel like they rush the drama, it’s like how can someone change heart so fast especially when Lee shin was a bit crazy about the professor, I know he moved on from liking her, but it’s still to fast just to catch feelings for Kyun Won. The fact that Lee shin was acting like a stalker, and being obsessed while Kyun Won is getting quiet annoying, I just hate when Kyun Won chase after Lee shin when he push her away she’s still going back. And also I just hate when they play music or OST song when they are singing, I was hoping we can actually hear them singing. Otherwise the drama is okay the only entertaining I find watching this drama was Joon Hee his enthusiasm silly character make you keep going with the drama. Some ppl seem to think this drama is lip singing, but I believe it isn’t lip singing but more of like they just muted there singing and put a song on because the way the song goes and there mouth goes doesn’t seem like they are singing the same song when the music is on but I can be wrong.