Maron Kusakabe is the main protagonist of the anime and manga series, Phantom Thief Jeanne. She is also the love interest of Chiaki Nagoya.
Maron is a young high school student and gymnast. However secretly, Maron is Kaitou Jeanne, a famous thief who is known to steal many objects whether valuable or simple and has never been caught. However, she secretly works with God through her Angel Fin as the objects she "steals" cause people to become possessed by demon minions sent by the Devil. She fights against the demons possessing the objects and once she gets the chance, she checkmates it, causing it to turn into an actual chest piece, thus defeating the demons and causing the items to disappear.