Irène

Irène (イレーヌ Irenu) is one of the Schiff, but unlike her companions she is greatly bothered by the idea of killing humans to drink their blood, refusing to do so despite its leaving her in a weakened state. She fights with a wide, double-sided sword. After Kai saves her from some thugs in Paris, Irène tells him how the Schiff came to exist, how they are dying from Thorn, and why they keep attacking Saya. She also tells him that they think Saya's blood will save them, so he offers to ask Saya. When the Schiff later attack Saya's group, she and Kai try to convince both sides to stop fighting because of their new friendship, but the fighting only stops when Irène collapses from her progressing Thorn. Saya reluctantly agrees to feed her some of her blood, but it ends up killing Irène. Her death is mourned by Kai, Saya, and the Schiff alike. Realizing its Diva's blood they really need, Irène's death is the precipice for the end of the hostilities between Saya's group and the Schiff.