you are wrong! When namine ritsu was going to appear , she was a boy and who mades her voice was a boy , but later , the boy who made her voice, change her opinion and left the project halfway, then Utau took namine ritsu and change her voice to a girl and comverts namine ritsu into a gir. She isn't a crossdresser!!! and her creator says that her sex is undefined because of that. I hope I have informed you !