Alya Césaire/History

Alya Césaire is a teenage girl who is friends with Marinette Dupain-Cheng. She adores superheroes and runs the Ladyblog for Paris' beloved hero, Ladybug.

Before Season 1
Alya and her family moved to Paris. It is unknown why or where they came from.

Season 1
On September 1, Alya sat alone in Miss Bustier's classroom at Collège Françoise Dupont. She just moved to Paris and didn't know anyone. When she saw Marinette Dupain-Cheng being bullied by Chloé Bourgeois and Sabrina Raincomprix, she stepped in and helped Marinette, the two becoming fast friends. They went to the library to study in between classes when they were knocked to the ground. Running over to the library's cameras, they spotted Stoneheart throwing cars and shouting for Kim. Excited, Alya ran off hoping to find a superhero since this was obviously a super villain. She biked her way to the Parc des Princes where she found Cat Noir fighting Stoneheart alone. She found his partner and encouraged her to join the fray, being saved by the two of them in the process. After Stoneheart was defeated, Alya--recording on her phone--asked the girl what her name was, learning it was "Ladybug." Her video was shown on the news.