talking about his gender. its actually the author want to categorize him as female. but the editor in charge decline him xD
[Taken from : Baka and test Vol 12.5 Author Notes+After Story]
Hideyoshi definitely is a character who changed into a female. The decisive blow was Haga-san's illustrations, so I have no shame about that. I still remember the first time I was shown the character illustrations, and I earnestly begged the editor-in-charge, "Please make this kid a girl!". Those are wonderful memories, though I was rebuffed in the end.