Before he was an Ghoul he was an Norma human work for the CCG or the doves... But he was abandoned and illegally transformed into a Ghoul, an humanoid creature that eats the human flesh and drink coffee, Ghouls can regenerate limbs and scars fast, they have red pupils and an black scleral wen hungry or angry, they, Seido Takizawa as an Half ghoul he has one Ghoul eye and the other is normal, the only thing that he can do that no other ghoul could is swallow humans whole as he trained to make it.