Fan asks if O-Kiku bathes separately since she's the only female among the Nine Male Red Scabbards, but Oda says that in spite of that Kiku bathes with everyone, being a social person since childhood. The way it's addressed makes it sound like Oda considers her as female
#SBS96

Reminder that in Japan it's not uncommon to bathe with others, but while males and females bathe separately today, in old Japan baths were usually mixed. That's likely why this question is brought up, asking if in spite of how she identifies, Kiku still bathes with the others