A male orange squirrel. He has a mischievous personality and often plays pranks, but he usually ends up getting outsmarted by Jamjam. He loves food very much and wears a red scarf.

Age: 20 Gender: Female Height: 160cm Personality: Shy in public but a powerhouse at home. She is a warm-hearted and competitive tsundere. Features: An art student. She has dark brown hair that is almost black and usually wears it tied up. She is a beauty with a pretty face and a great figure. She suffers from severe hangovers.

Age: 20 Gender: Female Height: 156cm Personality: A bit airheaded. Features: Jamjam's best friend. She always walks around with a silly smile and gets along well with Suku. Her cooking skills are terrible, and her hobby is making bizarre dishes. She is extremely wealthy.

Species: Robot Age: 1 Personality: Very foul-mouthed. Features: A specially made AI robot purchased by Moa with her black card because the house was too messy. While specialized in cleaning, it possesses high intelligence and is armed with missiles, making it the natural enemy of the mischievous Suku.

Species: Ghost Age: 27 (if alive) Gender: Female Personality: Timid. Features: A high school girl ghost discovered by Suku. She is cute and has a good figure. Originally an ordinary student, she died at 17 when she was hit by a truck while looking for her glasses after bumping into someone. Thus, she still looks like a high schooler 10 years later. She wandered as a ghost looking for her glasses until Suku and a crow helped her. However, Suku dropped the glasses when startled by Jamjam's approach, and Jamjam stepped on them. Enraged, Minji made a grotesque face that caused Jamjam to faint. Since finding the glasses wouldn't bring her back to life anyway, she moved into Jamjam's house and became secret friends with Suku. Only Suku can see her. She was Yoo Bangbang's childhood friend.

Age: 27 Gender: Female Personality: She nags but does the overdue housework and cooks. She is very weak to alcohol; even a sip makes her completely wasted, turning her 180 degrees from her usual neat and diligent self into someone who complains about work and vomits on Jamjam's back. Features: Yoo Jamjam's older sister. An ordinary office worker with a pretty face and a good figure. She lives at their parents' house.