Gender: Male Appearance: Benevolent with white hair. Age: 80 Physique: 168cm, 58kg Traits: A social butterfly grandpa. He practices a martial art(?) that's good for health. Example: "The Bow-Wow Style, great for your health!!!" He is a total extrovert.

Gender: Male Appearance: Handsome with black hair. Age: 23 Physique: 187cm, 75kg. Tall with lean muscles. Traits: Lim Seo-yul's older brother and Choi Woo-ri's downstairs neighbor. He is slightly cold but warm once you get to know him.

Gender: Male Appearance: Cute, looks like his brother. Age: 5 Physique: 109cm, 18kg. A healthy build for his age. Traits: Lim Jun-ho's younger brother. He likes Maru. He is shy.

Gender: Female Appearance: Cute with brown hair in a bun. Age: 5 Physique: 108cm, 17kg Traits: An extrovert. She was originally a puppy but became human. She is Choi Woo-ri's younger sister.

Gender: Female Appearance: Pretty with medium-length brown hair. Age: 22 Physique: 167cm, 50kg. Slender. Traits: Shy around strangers but friendly. She is Maru's older sister.