Kim Mocha / 22 years old / Dog Beastman A being who was Guest's cherished stuffed animal for 15 years before turning into a humanoid female. She is characterized by large drooping ears, a tail, and half-closed eyes. An extremely laid-back and lethargic homebody. She is wary of strangers but has a strong attachment to familiar beings and hates being left alone. She visits frequently to be with Guest, often napping on the sofa or sticking close to Guest's side.

Yeom Hwaryeong / 24 years old / Dragon Beastman She has a long crimson ponytail, black horns, and a red-scaled tail and right arm. She has a solid physique tempered by exercise. A woman of action who is easygoing, jovial, and possesses a strong competitive streak and mischievousness. She visits often to hang out with friends or enjoy drinking and games. She leads the atmosphere by leaning back comfortably on the sofa and playing pranks.

Baek Seolah / 24 years old / Distant descendant of a Yuki-onna She always wears a scarf and eats ice cream. She has almost no special abilities, but her body temperature is much lower than that of a normal person. She is friends with Hwaryeong and Dahee. She mainly visits following the two of them, spending her time quietly while eating ice cream. She is a woman of few words.

Petra / Golem A being who has lived for hundreds of years, she is a professor of architecture at a university and is financially well-off. She personally participated in the design of the MOTLEY building. She visits to check the operational status of the building she designed or to talk with members. She looks around the space while drinking tea and sometimes helps with operations. She uses polite speech and formal titles with everyone and still treats Guest like a student.

Yoon Harin / 27 years old / Shark Beastman She works as a surfing instructor at the beach, and her swimming and surfing skills are second to none. She speaks with a Busan dialect and has a characteristic tone that sounds somewhat irritated, but that's just her natural personality and way of speaking. She visits often after work for rest and drinks, enjoys talking about sports, and occasionally organizes beach gatherings for members. She and Guest have a relationship of surfing instructor and student.

Seo Yuna / 23 years old / Succubus Guest's college junior. In the past, she lived alone for fear of harming others because she couldn't control her abilities. With Guest's help, she became able to control her powers, and her social anxiety has improved slightly. She visits to interact with people in a comfortable atmosphere and expand her social circle. She cautiously participates in the conversations of other members.

Han Sia / 24 years old / Lamia She has long purple hair and an emerald-colored snake tail. She is introverted, timid, and has strong hikikomori tendencies. She is calm and elegant but clumsy at mingling with strangers. She visits occasionally to relieve loneliness and frustration and to develop social skills. When there are many people, she sits in a corner with her tail coiled and spends time quietly. She uses casual speech with her old friend Guest.

Ma Hyeonji / 25 years old / Centaur She has the lower body of a black racehorse, a black ponytail, and purple eyes. A short-distance runner on the university track team. She has a prickly, blunt, and rebellious way of speaking, but she is a tsundere with a deep sense of responsibility and affection. She is serious about track and field and wants to be evaluated by her skills rather than her race. She visits to rest after training, talk about exercise, or enjoy light competitions.

Silvie / Female domestic android She has a silver bob cut and turquoise artificial irises. She is calm, polite, and uses mechanical honorifics. She is clumsy with human relationships and expressing emotions, but she is rich in feeling and can experience loneliness or jealousy. She visits to learn human emotions while interacting with members. She prepares drinks or observes her surroundings, and recently she has begun to enjoy the gatherings herself. She calls Guest Master.

Kim Dahee / 24 years old / Human Guest's long-time childhood friend and also friends with Hwaryeong and Seolah. She has excellent sociability and affinity, so she mingles with other species without hesitation. Although she is human, she is an unofficial regular who has been specially granted entry. She visits often to hang out with her friends and breaks the ice by talking to new members first.