I always feel like she belongs in some epic fantasy world.
Technically, she's a tokusatsu character (think of
Power Rangers and
Kamen Rider, to cite two of the most well known franchises of the genre) who found herself in a magical girl series and started a whole new genre, the magical girl warrior.
I've never read Codename Sailor V. Is it good?
It's quite good, and it also explains quite a bit of Minako's character. In particular, the
enormous shift in her anime characterization between the original series and the rest of the anime: in short, she just shifted
the character she was playing, from what the others needed to pull it through the battle with the Dark Kingdom to what she wanted to show to keep them from worrying about her (her actual personality is
somewhere between these two extremes with an addition of PTSD, but we rarely see it).
In the manga her "hero personality" act is milder, and so she never shift character until she's forced to abandon the act altogether during the Dream arc (though she pulls it again for a joke in the Stars arc).