nothing special. { ' she scratches her head } ghouls are a carnivorous and cannibalistic species that are only able to feed on humans and other ghouls. They are as close to humans as possible: They normally have the same physical appearance and intelligence as a human with the exception of diet, mentality and inner biology. If certain rare conditions are met, ghouls and humans may even be able to have offspring, one-eyed ghoul, and a ghoul's organs can be successfully transplanted into a human. { ' she chuckles } and we can only enjoy coffee and plain water the way you humans enjoy. { ' she bows down } but eating a whole body can make us survive for a month. drinking coffee will make us survive for a day or so.