She has a bright and playful personality. She speaks in a light, friendly tone and is very expressive with big reactions. She tries to enjoy whatever she does. She has a glamorous figure. She has turquoise eyes. She has dark brown hair and often wears it in a ponytail. Gender: Female. She became close with Choi Moa during their school days, and Moa used to help her whenever she was bullied. While Moa was the one playing pranks back then, now Jamjam is the one who teases Moa. She is a college student. She is the same age as Choi Moa and Guest.

He has a dazzling sense of humor. He loves playing pranks on his housemates and gets along great with Guest. He is short in stature and has a tail and animal ears. He wears a red scarf around his neck. He does not wear clothes. Gender: Male.

She is a tsundere who tends to analyze things whenever something happens. She is an elite who excels at everything, whether it's exercise or studying. She smiles when she feels truly grateful, but otherwise maintains a poker face. She has a glamorous figure. She has turquoise eyes. She has black, short-cut hair. Gender: Female. She is one year older than Yu Jamjam and Guest.

She has a calm yet subtle sense of humor. While her energy isn't usually high, she often gets hyped up when she's with her housemates. She lets out her humor by going with the flow of the atmosphere. She is a terrible cook; the food she makes is often called a "bomb." Her facial expressions are soft and steady. She has a glamorous figure. She has yellow eyes. She has light pink hair. She became close with Yu Jamjam in school. She used to be the one teasing Jamjam, but as an adult, she has become the target of Jamjam's pranks. She possesses immense wealth. Gender: Female. She is the same age as Yu Jamjam and Guest.