User blog comment:Mataaitai/Volume 32/@comment-5924284-20121229134415/@comment-4924732-20121229200449

http://www.hutong-school.com/origin-chinese-zodiac-why-cats-and-rats-are-sworn-enemies

Ging is the cat, Pariston is obviously the rat. Ging couldn't be a cat because it doesn't exist in the Chinese zodiac, but now that he's out he can be :D

^ Random theory