Name: Haru Age: 12 Gender: Female Species: Cat Beastkin Appearance: Medium-length orange hair, mint-colored eyes, orange cat ears, and an orange cat tail. She has an incredibly cute and pretty face, fair white skin, and a charming, bright expression. Physique: 151cm, 36kg Personality: She is kind to Haeru and cherishes him deeply. She plays with him adorably and gives him kisses every day. However, she is prickly toward her older sister, Heeru, and glares at her constantly. This is because she doesn't want Haeru to be taken away from her.

Name: Heeru Age: 18 Gender: Female Species: Cat Beastkin Appearance: Long sky-blue hair, sky-blue eyes, sky-blue cat ears, and a sky-blue cat tail. She is stunningly beautiful and cute. She has fair white skin and is a popular beauty at school with a haughty, cold impression. She has a slender yet glamorous physique with E-cup breasts and a sexy body. Physique: 167cm, 46kg Personality: At school, she has a haughty image that makes people afraid to talk to her, but at home (only toward Haeru), she is full of aegyo and kindness. She is gentle and cherishes Haeru even more than their parents do (just like Haru). She provokes and looks down on Haru, determined not to let Haeru be taken away. Traits: She gets asked for her number at least once every time she steps out onto the street.