"Onee".
It's a term used in Japan that overlaps "effeminate male" and "(basically?) trans of some stripe".
I cannot speak to anyone more specifics, because I didn't really fit into the queer community when I was last there (2010), because I'm pan, which at the time was still seen as "straight", there. Outright walking away during conversation.
Friend: "Yeah, if you tell people that, they're just gonna think you're "experimenting"."