Pretty nice Doujin indeed; the artwork is simply awesome, but of course, if you know Niku Ringo usual stuff, you know this is not for any idiot passing around, but specially made for a selected group; the plot is interesting, specially for the Vivi part, but sadly, you'll need special skills to enjoy it (yeah it sucks sometimes); the action is of course fucking hot, highly inciting and quite fetishistic; and finally the censorShit is tolerable. So overall, a fine piece of work for all those hardcore fans.