Interestingly enough, Mononobe seems to be referring to Toyosatomimi as "the Prince" rather than "the Princess". He/She looks exactly the same anyway.

Futo refers to Miko as the crown prince in the game.

FRien said:
Interestingly enough, Mononobe seems to be referring to Toyosatomimi as "the Prince" rather than "the Princess". He/She looks exactly the same anyway.

I'd like to clarify, Mononobe refer to Toyosatomimi as 太子, it's a word indicating an imperial succeessor without any denote of the gender. It's the same in Chinese (tàitziə̌) and Vietnamese (thái tử) language.

However since the sexist idea is strong in Asia, normally only male children will inherit the throne. That's why most translation of 太子 is "crown prince", even though "crown princess" is also correct (and indeed had been used for girls when the king had no son and had to give the throne to his daughter).