morumi

The titular Main Character of Mahou Tenshi Morumi ("Magical Angel Morumi" or Magica Morumi), a in-universe magical girl show in Pui Pui Molcar.

Unsurprisingly, she's a guinea pig girl with the guinea pig ears and prominent upper teeth if not buck teeth outright.

Abbey becomes an itasha adorning her to his own dismay during episode 10.