So I just got Yen Press's release of this today, and discovered they decided to refer to Asora as their daughter. I wonder if it's ambiguous in the original or if they changed it from son to daughter based on Asora having a crush on and being crushed on by a guy.
@homogenized
There's also the fact that in cover arts Asora is almost always wearing girls clothes, like the dress in the manga image and that china dress in one of the chapter arts