That's the draw of it, though.
Anime is all about girls who talk to aliens, or can see people's auras, or have weird, bizare, tacked on traits.
Nobody's actually normal.
She's plain. Absolutely unremarkable. She's so far down the road of bland, in fact, that she's the complete opposite of every other character in anime....
Which actually makes her a weirdo, if you think of it that way. Damn, now she's boring again. Ah well, I guess that's normal for a background character.