Ghoul (Tokyo Ghoul)

Ghouls are an humanoid species from the anime and manga Tokyo Ghoul that need to eat humans in order to survive.

Since human food tastes bad to Ghouls and can even be bad for their health, Ghouls are forced to eat human flesh, wich is why they are hunted by the anti-ghoul organisation the CCG. While some ghouls view humans are lesser beings and nothing more then cattle, other ghouls like human and only eat already dead people.

Ghouls posses superhuman physical attributes and have an hard enough skin that weapons such as knifes aren't able to pierce their skin. When in combat their eyes turn black and their pupils red. They also wear masks to avoid being recognized by the CCG. Lastly ghouls also have something that is known as an Kagune wich is an predatory organ that varies with each ghoul.