t is shown, both in the main series and Soul Eater Not!, that before she and Patti became Kid's Weapons, they were much more cruel and selfish. In one of Liz's flashbacks, she and Patti were mugging an old man, saying that they wouldn't hurt him if he gave them his money. After Liz snatches his briefcase, she hits him over the head with Patti (in Weapon form).
She is the older and more mature of the two sisters. Kid's obsession with symmetry and how he'll sometimes let it control his life sometimes gets on her nerves and she frequently reprimands Kid for this, although she won't hesitate to cheer him up when he is depressed. She also displays some courage and determination whenever her friends are in danger, and tries her best to protect them.