I love that Duty After School has no specific main characters and it focuses on each students as a team. Some may find them annoying and dumb, but I love how they're realistic and relatable. They're still kids who are whiny, reckless and clueless about the sudden situation they got into. All they know is that they joined the military training to gain extra points for their college entrance exams. At first, they treated it like a camping with fun and games. They're even joking and mocking the soldiers instead of being scared. They don't have access to the internet and communication outside that adds to their ignorant behavior. Then they realize how serious the training is and the other students wanted to leave, but it took a dark turn when the real situation hit them and the rest of the students no longer have the choice to leave.

Before and during their training, I already love their class harmony and how real the characters feels like being immature and carefree teenagers. There's a lot of funny scenes that made me laugh and there's more intense scenes that made me hooked. After the first alien attack that they encountered, they are forced to face their new reality and grow too fast. There are times when they couldn't rely on the adults and have to be independent while working together. Despite everyone's differences from personality/mindset/ability and when conflict arises, they still keep hold onto their bond and trust each other. It's so heartwarming and admirable to watch all the students helping each other, growing closer and doing what they can despite being thrown into chaos. I became attached to these students who learned to be strong while gradually building their teamwork during the apocalypse.