"Lulu (ルールー, Rūrū) is a fictional twenty-two-year-old black magic user in the Final Fantasy series, and one of the main characters in Final Fantasy X. She was designed by Tetsuya Nomura, and voiced by Paula Tiso and Rio Natsuki in the English and Japanese versions respectively. She appears as the guardian to the lead female protagonist, Yuna, and is in a relationship with Wakka in Final Fantasy X-2. She appears in a reduced role for Final Fantasy X-2, where she has a child with Wakka named Vidina.
She was designed by Tetsuya Nomura, a regular character designer in the Final Fantasy series, with the intent of combining the look of a fashion model with a Black Mage design, which typically features robes, a floppy hat, and an obscured face that shows only two glowing eyes. She has received positive reception for her role in Final Fantasy X, including being ranked the best character in the game by IGN."
Source: Wikipedia, "Lulu_(Final_Fantasy)", available under the CC-BY-SA License.