Layla is Barbaroi that's about 18 years old, her past is unknown, all that's known to other is that she's a great fighter. She rarely show any emotion on her face, and she seems to hate all the Dolls in generall. However, the only one that she cares a lot for and willing to show emotion to is Nei, which is an unregistered Doll that travels with her. How and where she met Nei is still unknown.