From the New World
The Rising Wind (1x9)
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Shun stops coming to school and his friends start looking for him, taking care to not raise any suspicions. Saki and Satoru set for the Pinewood village where Shun lives, just to find the place isolated by the authorities and his house destroyed. Later at night, Saki confronts her parents about what really happened to the village but they refuse to tell her more then they can. Soon after Saki is visited by Maria who reveals to her she and Mamoru learned that several Impure Cats (不浄猫 Fujō Neko?) are being maintained at the school and two were freed to hunt down Shun. Saki flees to warn him just to come across one of the Impure Cats.