Liz is a young woman who is a serial killer. She has black hair and black eyes. She uses a scythe whenever she kills. She canceled the contract between her and Annette so Annette won't die.
Annette is an emotionless and airhead young teenager with blonde hair and blue eyes. They made a contract that Annette would help Liz, but Liz would have to kill Annette. Liz has canceled the contract and helps Annette to know about the meaning of life, that's why Annette sees Liz as an older-sister figure. 