Kitsune

From TCWiki

Kitsune - Japanese fox-spirits.

Kitsune are known to be relatively amoral, quite attractive/alluring, and prone to pranks. The character Himoto Kitsuko is a half-kitsune, her mother Haruko is a full kitsune, and the character Dr. John Markinson is a kitsune in service of Inari.

Coincidentally, Kitchan's name comes from this word, and one of the many Miho theories as well.