I wasn't gonna participate in this thread but this question was on my mind as well, I personally only remember them making a vague comment at the start about "sometimes I'm a guy, other times I'm a chick" re: the marriage swindling hustle, with just the vague implication that kino's a guy so gero doesn't get his hopes up or whatever & try to pick them instead of the "real" candidates (which makes even more sense now with the backstory we're given revealing kino's been under duress since the start lol)
I was thinking about this recently, too, by the way. I mean, was Kinosaki's biological gender ever directly confirmed in any way outside of his own words? This could be a pretty interesting red herring, making you think your heroine is a femboy to gain additional audience and at the same time enhance the romantic intrigue, if there was one in the first place. Another question is, if Kinosaki really is playing with the "pseudo-BL" trope of a girl pretending to be the male MC's best bro in an unusual way, it could potentially cause even more butthurt for local fujoshi and gachimuchi lovers than if their shipping had been ruined simply by Gero choosing a some girl.
Because it's obvious that it's one thing when your BL ship is sinking, when you once again expect the impossible from a work for a male audience (judging by the dialogue over Medalist and several other titles, the very idea of OTP instantly makes people ignore any plot or genre restrictions), but it's a completely different matter when the author is actually directly misleading you. So, although I don't know if Gero will be with Kinosaki or anyone else in general, I don't want to guess, but if it really was a red herring (by the way, Japanese Wikipedia still calls him a "male" anyway), the discussion of the final chapters will definitely be even more heated.
