As someone who has read/owns the raws up till Vol 5, I can tell you yes. We rarely see her male form going forward (at least for as far as I've read). She pretty much just prefers to be a girl whenever possible.
I know it's tempting to share, but please keep your knowledge about untranslated chapters as a secret - it will take a long time before we'll be able reach the point the manga is right now.