Okay, so I went into this movie with the lens of the way I watch other dramas, however, midway through, I had to back pedal, and instead watch from my theatrical lens (as someone who majors in acting). This film asks you to see the story through subtext, indeed it tells the story of death and the aftermath of it. How it affects those around them.
Do NOT expect this to be a fluffy school drama, watch it through the subtext and you'll find heart-breaking story in its depths... overall I would rate this lower from an avid Korean drama watcher perspective, but higher from an actor's perspective
To make it make sense to those who may not have picked up on it, it is quite clear that midway Hyeon Jae passes away while walking with the new student, the aftermath is what follows