Question: who is lily from once upon a time
Answer: When Emma Swan discovers that a former friend from her past , Lily , is Maleficent 's long lost daughter , she embarks on a quest to find her and bring her back to Storybrooke in order to reunite her with Maleficent , and Regina teams up with her in an effort to warn Robin Hood about Zelena , but the two are about to face what awaits them outside Storybrooke .