Emma is a ghoul who was once a human but her father wanted her to be born a ghoul because he was one. So he did experiments on her and one day he got hands on Rize and put her blood and she was made into a ghoul, a one eyed ghoul. The other experiments he did on her made her have the ability to take others ghoul Kagune. When she was made a ghoul she worked by her father's side but she got sick of it and escaped and now is on her own. She is known as the No name because no one has lived to give her a name.