Poorly written show. Gwi-Nam is clearly a tool to for the writers to further the plot; like they had no better ideas on how to carry the narrative. No real explanation on why only 3 students get to somehow be indestructible, but then he somehow dies after not even being in the epicenter of the explosion. The ending is even more ridiculous. I canโt knock anyone for liking the show because if you turn your brain off and get caught in the cringe emotional moments then yeah itโs touching. If you look at it from a writing and logical standpoint the plot armor is too convenient and then suddenly not convenient. There are just too much inconsistencies.