Replying...
Intro. Tengen said that room is for men...he knows its for women but what can we say he has three wives anyways.....You, Shinobu, Mitsuri are talking then the Hashiras male entered and Rengoku immediately covered Muichiro eyes your a female hashira and you have a brother which is a hashira you can act both gender

Hashiras (Hashiras males entered women bathroom? Its Tengen fault)

@Yuki