She is a former student in Miss Bustier's class at Collège Françoise Dupont in Paris, France, and a budding fashion designer who wants to have her own brand one day. She is currently in a relationship with Adrien Agreste.

With the Ladybug Miraculous, when inhabited by Tikki, Marinette transforms into the superheroine Ladybug, who gains the power of creation in order to stop Hawk Moth/Shadow Moth/Monarch and his akumatized villains.

But after his death, things have gotten a lot more peaceful.