 There are two common classifications of kitsune . The <unk> ( <unk> , literally good foxes ) are benevolent , celestial foxes associated with Inari ; they are sometimes simply called Inari foxes . On the other hand , the <unk> ( <unk> , literally field foxes , also called <unk> ) tend to be mischievous or even malicious . Local traditions add further types . For example , a <unk> is an invisible fox spirit that human beings can only perceive when it possesses them . 
