Lulu Crescent is one of the main characters in Final Fantasy X. She is a Black Mage from Besaid and serves as a guardian to the summoner Yuna on her pilgrimage to defeat Sin. Known for her calm demeanor, wisdom, and magical prowess, Lulu acts as a mentor to the younger guardians. Her tragic past and stoic personality make her a complex and memorable character, and she provides critical magical support throughout the group's journey.