Historical, fantasy, magic, horror, supernatural, survival, vampires, demons, pirates, mutants, ghosts, romance (FxF, MxM, MxF) (Romance should be part of the plot and not the whole plot in itself), etc.
What the hell did I just watch? Only in Japan... Only in Japan. I can kind of see how that can be useful for people that cosplay or whatever, but running around outside with that on at all times? Huh.