One of the alternate forms of [[hakurei reimu|Hakurei]] [[yin_yang_orb|Yin-yang orb]]. 
As decipted by [[genjii_(touhou)|Genjii]] in [[Story of Eastern Wonderland]], one of the "true powers of ying-yang orb" is to turn into a cute cat that doesn't need to eat or use the bathroom, doesn't act hissy or get fleas.
yin yang orb (cat)