What's up with their Hawaii shirts? It doesn't seem plot relevant, but seems like it should be plot relevant?
Yeah, I was wondering about that as well. And the fact that we never see any kind of background, in any panel, doesn't help much to understand the situation. Are they supposed to be in a batting centre...? And the title refers both to senpai's line, as well as the place where all this is happening??
Not that a batting centre would explain the Hawaiian shirts though....