Jean

Jean is Claymore #9 and an offensive fighter. Her "Drill Sword" technique, based on storing energy by twisting her arm and releasing it in one burst, is said to be the most destructive among her peers. She is serious and strictly honorable.

Employment as a Claymore
Jean and her team members (Katea, Rakel, and an unnamed Claymore) are captured by Dauf and Riful during an Awakened Being hunt, which turns out to be an ambush. She tries hard to stop Katea from awakening, however she does and is immediately killed by Dauf for being too weak. After prolonged torture, Jean awakens too. Her awakened form resembled a butterfly with many veins connecting to its wings. However, she is able to revert back to human shape by virtue of her extraordinary willpower and Clare's help. She then decides to pay back the life debt she now owes Clare, choosing to serve her for life.

The Northern Campaign
In the Northern Campaign, Miria gives Jean the position of division captain. Her team includes Eliza (#17), Emelia (#27), Natalie (#37), and Diana (#44). During the second battle, she is critically wounded by Rigardo. After Clare kills Rigardo and is pleading for death due to passing her limit, a dying Jean, with a hole in her stomach area, uses the last of her strength in order to help Clare revert back, thus fulfilling her pledge. In the anime, this occurs after Clare's battle with Priscilla. No one from her team survived the Northern Campaign.