Kamikaze Kaitou Jeanne: v.1 by Arina Tanemura
By day, Kusakabe Maron is an ordinary high school girl with more than her share of problems, But by night, she is Phantom Thief Jeanne. As the reincarnation of Joan of Arc, her mission is to steal demonpossessed paintings and neutralize their evil. Jeanne's only ally is the angle-in-training Finn. Together, they must fight evil by night while surviving high school by day.