It's nice to see high-schoolers trying to figure out what to do with their life, and anchor the whole in real facts (Asian financial crisis of 1997, then to a minor extent the Sept. 2001 terrorist attacks), but looking a few below the surface, the series unravels, leaving much nonsense.
The series is full of monoparental families, or where parents are absent, and as such can't help their kids, which is seriously odd in Korea today. Extremely odd is the daughter of HeeDo who makes 0 reference to her father (she was somehow born! even if sperm donation was performed).
The whole spiel about fencing looks abnormal. Geographically, the high-school supplying half of the female national competitors and the national training center make no sense. Linguistically, the French sucks big time (school in "France", commands during Korean training, and at international events, ... the whole thing); the producers could have recorded a complete set of orders and then used it ad hoc throughout the series.
In the end, I am left with the feeling that the author didn't really know what to do, and thus took a bit of this (choose a sport, fencing), and that (some pseudo-rivalry among leads, a point in time for the main story and another for the results of the story), and then see what happens.
What happened is not much.