I made an account on MyDramaList today because I'm tired of the inflated scores reviewers give to these types of Dramas. There are dramas that definitely match their score and deserve their high rating like Signal, My Mister, Prison Playbook, and a handful of others. But sadly what I see is that there are way more dramas that have inflated scores even though they have blatantly large plot holes and this drama is definitely one of them. I understand Korean culture highly values education, but to value it to the point that the students in this show values it makes them look autistic, not smart. Why would anyone assume the CSAT meant anything during an apocalypse? Sure, it's only after several months of military training that they realize the true motivations behind their training but how would anyone still choose to stay in the military primarily for CSAT scores rather than training to fight aliens(I'm speaking of the second ranked student that wanted to continue military training after finding out they were fighting aliens). The other thing is why did the class have to move as a group? If people want to go back home they should go back home. It felt like the staying as a group idea was just lazy writing. Also, how did the students not see any bodies during their trip to their first marksmanship test? The streets are littered with bodies and destroyed buildings. Do these students just lack common sense? I don't know how this drama got a rating of 8.6. The cinematography is good but the characters are unbelievably dumb and the plot is riddled with as many bullet holes as there were in this show.