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

Well, I believe she is indeed a she, and that Evan is a guy. But when it comes to Aran that change from using the male sprite and the female sprite so much that you can label it either really. Unless the flashback still shows Aran as a male (not sure if they changed it) it would be the only in game proof that Aran is male canon wise.

There is also the fact that when going in the past there is a male Aran laying on the ground which also implies he is male.