Neptear (ネプティア) is a figure of Neptune and Nepgear was a Fusion. So to speak it indicates that the ultimate body of the goddess of Planeptune.
About[]
Figure was the Fusion Neptune and Nepgear. Is one of the secondary creations, which means it is not official.
Coalescence of Neptune and serious Nepgear blur responsible meaning imagination difficult there. It's goddess state can be said that (Purple Heart) + serious (Purple Sister) strongest rating even so in the goddess of individualistic set, seems to be.