Ruri and Hari

Ruri and Hari are identical twin cat-demon underlings of Koryuu. They can transform into ordinary house-cats to hide from the world (during the day they must stay in their cat form, similar to the way Kohaku and Koryuu turn small), and will do anything he asks of them to get gifts (often sex) and/or souls. They deeply enjoy kisses from their master. You can tell them apart only by their jewelry - Ruri wears circles on her earring and necklace (earring and tail when in cat form), and Hari wears bars on hers.