That wasn't a death flag, was it? It's too early for those..
...you'd hardly know there was a war on! What he says here is "gekisen-ku", a term used during elections to describe a particularly contested ward or constituency. I think the joke here, then, is his disbelief that so many people would come out in spite of the raging combat, but I'm not 100% on that, sorry.WELCOME!!What the hell...Sempai--!...won't get through my two-meter personal space!Anyone I don't know...Understood!I'll be okay!Yessir!On my way!