An alchemic girl who materializes after Arata touches Lilith's Grimoire. Her emergence triggers the awakening of the Eternal Library and sets off the chain of events involving the White Demon Lord. Regarded as a daughter by both Arata and Lilith.
Last Trinity seeks to destroy Arata and his allies, directly opposing Lilim's existence.
Lilim emerges from Lilith's grimoire and recognizes her as a maternal figure.
Lilim is created from Arata's magic and regards him as her father.