Age: 14
Horoscope: Lion
Hair Color: Blond
Eye Color: Blue
Born in: France
Guardian Character: Nana
Family: Maman and Father
Hobby: Making jewelry
Lulu is an anime-original character in Shugo Chara!! Doki with Peach-Pit contributing the idea (as stated in Nakayoshi) along with her guardian character, Nana. She is the new Easter Company worker who can turn Heart's Eggs into Mystery Eggs using a ruby necklace. Lulu can also corrupt the owners by forcing the egg to Character Transform with him/her. Her last name is likely a reference to The Count of Monte Cristo.
In the new series, she comes to Japan as her mother starts working in Variety Shows. She becomes an Easter employee in the search of the Embryo, but she actually is searching for the Embryo for herself. Her wish is for her mother to return acting in good quality movies, the job her mother left after she started doing Variety.