Responses
Need to wait for the story to develop more, but unregistered people during political conflict are common. I guess they specifically taking men who are deemed sus into custody to search for possible deserters/spies, which Luhan is, and it'll be the end for him (and other consequences too probably) if he gets caught

I skimmed through the story but why is he unregistered? And what's happening to the ppl that aren't? They're getting sent to fight in a war? Are they hiding in the country?