This had many elements for you to enjoy. It obviously speaks to the teens of South (and North) Korea more than someone like myself, but I think you can find solace in the family-like community that Dong-Gu grows to appreciate in the end. The heartwarming bromance between Dong-Gu, Hae-Jin and Hae-Rang - all three is a joy to watch. The scenes when they are at dinner or the anchovie scene were beautiful. Dong-Gu. I like the the idea of them having to use their training in their fight scenes come later in the film. The scenes themselves were predictably brutal in Korean fashion. Although the exection of some plot points like Sang-Gu being evil or whatever felt really flat.

The ending was pretty sad with Hae-Jin and Hae-Rang dying from their sacrifices and Dong-Gu persumably being killed - at least there is a bit of hope.