Kuromajo-san ga Tooru!!

Ms. Black Witch as a Dog (1x22)

:

As Gyubid brings up some magic cards that bring proverbs to life, a grammatical error on Chiyoko's part leads her, Gyubid and Touka to become transformed into dogs. As the card that can change them back ends up being taken by a crow, the gang chase after it. Chiyoko gets seperated and meets Megu's pet dog Gumi, who ran away from Megu since he didn't want to wear silly clothes for a dog fashion show. They eventually manage to retrieve the card and return to human form.