Now that you wrote it there, it's indeed pretty strange after 21 chapters, the story is still stuck in the initial setting. There's, presumably, a whole fantasy world out there, but all we have seen are the school buildings snatched from Japan and a bunch of orcs.Dude I can see this manga go for so long 21 chapters and it’s been at most a month, they’ve just been killing orcs what else is out there
Shots fired!!The orcs left sumire alone because they thought she was one of them.