It really was a drama with a magical feel, containing eye popping set moments and, of course, a very attractive lead male cast.
The story is a definite, quite sharp dig, at the S.Korean culture of many parents pushing their kids academically (at the cost of their childhoods), being fixated with 'powerful' jobs and their associated higher earnings, and moulding kids even if they don't fit. All at the risk, or cost, of their mental health.
The acting is fitting and the characters mixed, with one female being truly slappable.
The story gets far darker than the trailers and look of the drama depict, with a very unpleasant character in a thriller/crime element of the story.
It wasn't perfect and some aspects had me scratching my head; but, I was captivated and thoroughly enjoyed the singing in this musical, too. Ji Chang-wook is very talented, even though he doesn't always pick roles that make his talents shine.
Worth watching.