How many Black Knights (Black Wings Generals) are there really?

As I said before Aran is changed between male and female a lot. In the flashback of fighting the Black Magician Aran is shown as male, when you go into the past Aran is shown as a male.

And, I wouldn't put much weight into those images, they completely left out entire classes, guess those classes no longer exist because they weren't shown, eh? Do those images show up in game? If not than Aran is canonically male because he is shown as male two times within the game, anything outside the game doesn't count. Also, to use your excuse about Demon Slayer, Aran is shown as male on his class creation icon.

Okay, then we can accept that Aran is canonically male. I don't know if I should edit my prior posts to match this. But yeah, it'd make sense that Aran is male. It would also make sense that Valfar is male as well, since it's hard to tell which animation is canon, but the class select image is clearly male, meaning Valfar is canonically male as well.

Also at your comment regarding the classes no longer existing, technically, they're going with the ROOT of the base class, meaning what'd be acceptable to a MMO scholar. Warriors are known to carry shields and swords, mages carry staves, pirates were better known for their pistol use, Thieves carry all kinds of knivery, and Bowmen hardly used crossbows in history - only place you see them used is Feudal to Marksman age Europe and China. And do note China invented muskets AND Gunpowder.