Dense Food

In an ordinary world, there exists a creature that looks human but not human. No one knows about their existence. During the day, they hide among people and live like ordinary people. But at night, they go out in search of food. You may ask, since you can live like normal people, you can also eat normal people's food. Yes, you can, but there is no taste or nutrition; they can only get nutrients from human internal organs, just... To survive This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.