Tokyo Ghoul is a manga set in an alternate reality where ghouls, monstrous (or demonic) creatures that resemble normal humans but can only survive by feeding on human flesh and blood, live in secret among the human population and hide their true nature to avoid persecution by the authorities of the human world.Ghouls possess various superhuman abilities, such as enhanced strength and regenerative abilities; a normal ghoul produces 4-7 times more kinetic energy in their muscles than a normal human; they also have several times more RC cells, cells that flow like blood and can instantly solidify.