@anokineko that is the whole point of her name, her father was so desperate for a male heir that he made it so that legally she is seen in the eyes of the law as a male. Its a legal fiction to ensure her ability to serve in the military and inherit the family estate/title, and to go with that...
@Hounder While clearly not on earth it can absolutely be in the same universe, I vaguely remember seeing a space craft in one of the Helck flash backs. I mean the advances shown in Helck, there is no reason why they cant exist in the same Universe.