The titular character from The Legend of Luo Xiao Hei, a flash action-comedy animated series produced by Chinese artist MTJJ.
A spirit creature who is initially stuck in the form of a small black cat, he can also transform into a big cat form, and his humanoid "Elfin" form.
He also possesses the ability to break off pieces of his own tail into even smaller autonomous clones named Heixiu.
The following tags implicate this tag: luo_xiaohei_(cat) and luo_xiaohei_(human) (learn more).