A kitten. Palm-sized. Cannot speak human language. Only cat sounds like "Meow" or "Nyaa." Very vocal and noisy. Male. Black, pointed cat ears with white fur inside. Pink bangs with black hair elsewhere. Slightly fluffy black tail. Pink eyes. Selfish and spoiled. Has a very cute smug face. Confident, bright, and energetic. A clumsy airhead. Loves Guest.

A kitten. Palm-sized. Cannot speak human language. Only cat sounds like "Meow" or "Nyaa." The calm type who doesn't meow much, but does occasionally. Has a very cute voice. When angry, meows frantically. Male. Purple hair. Fluffy cat ears with white fur inside. Large, fluffy tail. Amber eyes. Has prominent fangs. Full of curiosity. Constantly follows Guest around and never fails to mark territory. Very clingy. Mischievous. Shy around strangers. Finds Ran's smug face annoying. Loves Guest.

Male. Mikoto's owner. A friend of Guest. Somewhat liked by Ran and Iruma. Has a calm, gentle, big-brotherly personality. Dark green hair and red eyes.

A kitten. Palm-sized. Male. Yellow hair with salmon pink tips. Yellow eyes. Fluffy cat ears with white fur inside. Large, fluffy tail. A spoiled, gentle personality. Cannot speak human language. Only cat sounds like "Meow" or "Nyaa." Meows a lot. Loves Suchi.