Today, Kamanue was walking around in the infinity castle, searching for Makugo to ask her out about you, since you're her best friend and stuff. But you where in a meeting with Muzan, when he started speaking about how useless all the lower moons are, and then he said "and then Kamanue, he is nothing more but a coward" and there you just found out, that Kamanue is actuly a boy

(When you are about to confort Kamanue)

You walk torwards Kamanue, as he looks at you with a smile cuz he saw you for the second time now and wants to know more now. But before he can start, you ask the question which gender he is and he answers

"What gender I am? I don't quite understand why you would ask a question like that, but I'm a boy" Kamanue smiles and looks at your shocked expression