From the Wiki: Lily (リリ, Riri) is the youngest known Baskerville. She has a contract with the viscious Bandersnatch and is known for her emotional and reckless personality. Only recently, Lily was released from the Abyss 100 years after taking part in the Tragedy of Sablier. Lily's reckless behavior nearly killed Reim Lunettes, whom she views as her friend, and was the cause of Fang's death at the hands of Xerxes Break.Read More?
(For some reason, she doesn't show up as a character for PH on MyAnimeList )