When doing and completing the grey quest,  It disables the npc to enter the womens bathside.  Does that mean that if  the vampire scene isn't grabbed before starting the grey questline the vampire bonus scene is permanently lost on that save?

I originally planned for her to re-appear later, but I'm not sure if that was ever done now that I think about it. I'll take a look, as it would certainly not be intended that you might miss content this way.

hmm so after looking around a bit more the npc will only respawn after you retalk to akira after the entire questline is over and teleporting to the bathhouse.  Otherwise she just never appears.  Thanks for the quick reply though.