If you guys insist on calling Kana a loli, then the rest of the cast is at least loli-adjacent if not also a loli. That shit is age related, not appearance (for appearance only related terms, see things like legal loli and lolibaba which very specifically point out that the person is not actually a loli, right there in the terms). None of them are more than a year higher than her at school. You might as well call Kana herself a lolicon if she starts showing that kind of interest in any of the other girls.