Guy loves dog. Dog dies. Dog possesses girl. Dog!Girl goes to class. Girl's classmates get possessed. Dog!Girl brings Guy to class at night. +7 Dog!Girls! Sex party?
It's good. I wish, since i'm a fan of hypnosis/mind control, that there was more between pic 17 and 18. Also too bad it's a bad ending (though if animals and humans go to the same afterlife, at least the guy and his dog will be reunited). But it's still good enough to be on my top list of favorites.