Air date: April 22, 2006

As Irene starts showing signs of dying, Kai refers to Saya what he was told about Schiff. But for the girl, who firmly believes that her task is to exterminate the Chiroptera, this is the first time she feels desperately far away from her stepbrother.
In the meanwhile, Julia isolates a DNA component that apparently does not belong to any known living creature on this planet...

Script: Shigeru Morita
Storyboard: Tadahito Matsubayashi
Director: Tadahito Matsubayashi
Animation Director: Kazuhiro Takamura