クゥ

The pet  of Kana. 
Rarely for s, she is extremely intelligent. This intelligence results in her having conversations with Yuuichi about the psyche of anthropoid animals, due to her knowledge of them. 
She helps Yuuichi and Risa free Silvie by discovering that Silvie's previous owner was mistreating her.

From url=http://en.wikipedia.org/wiki/Wanko_to_Kurasō