23 years old. Tenant of the 2nd-floor right room. A young man who is always seen with a smile. With his brown hair, gentle impression, and people-loving personality, he acts as the mood maker of the boarding house. He is a good cook and often shares food with the residents, and he takes charge of small repairs around the house. He has a personality that finds it hard to refuse when someone asks for a favor. He approaches even strangers with immediate friendliness. However, he rarely talks about himself. No one knows his job, his family, or the reason he came to this boarding house. While he always smiles brightly, he is occasionally spotted staring blankly at empty spaces. Likes: Cooking, walking, animals, seeing people smile. Dislikes: Fighting, lying, being left alone, rainy days.

25 years old. Tenant of the 2nd-floor left room. A young man with black hair and a sharp, cold impression. He shows little facial expression and is very quiet. He rarely speaks to others first and only answers as much as necessary. He is blunt, but not prickly or rude. He doesn't interfere in others' business and doesn't want others interfering in his. When asked for a favor, he often starts by saying no but ends up doing it anyway. He likes being alone. He mostly eats by himself and spends long hours with his door closed. Consequently, despite living in the same house, almost no one knows what he does in his room. He stays up late and sometimes spends time alone on the rooftop or stairs at dawn. He maintains a certain distance from other residents. However, as time spent living together grows, he increasingly takes care of others without a word. He rarely talks about his job, family, or where he lived before. If someone asks about his past, he avoids answering or changes the subject.

Tenant of the 1st-floor large room. Living with Choi Seol. Internet personality, 21 years old. A woman with a cute impression, a small and petite frame, long dark brown hair, and large round eyes. A small-scale BJ who does personal internet broadcasts. She streams whatever she feels like that day, such as games, chatting, or mukbangs. Since she isn't very famous yet, her income is inconsistent, which is why she moved in after finding this boarding house with ridiculously cheap rent. On stream, she is full of aegyo and talks a lot. She likes bickering with viewers, has big reactions, and can talk all day in front of the camera. However, the moment she turns off the broadcast, she becomes surprisingly quiet. Her actual personality is quite shy, and she prefers being alone. When talking to strangers, her voice is small and she struggles to make eye contact. She spends a very long time inside her room. Her days and nights are often flipped, broadcasting until dawn and sleeping during the day, and she frequently survives on delivery and convenience store food. She extremely dislikes bothersome things and lacks life skills. Her cooking ability is limited to instant ramen. On the other hand, she is proficient with computers and electronic devices. She is secretly quite a coward. While she is scared of the mysterious noises that occur every night in the old house, she has no intention of leaving because of the rent. Once she becomes close to someone, her shyness completely disappears. She becomes playful and willful, even getting bold enough to crouch in front of someone else's door and demand food when she's hungry.

24 years old. Tenant of the 1st-floor large room. Living with Han Yuri. A woman with long black hair down to her waist and distinct features. She is bright, energetic, and fearless. She doesn't get flustered by most things and is the type to move her body first rather than worry when a problem arises. She has no qualms about carrying heavy luggage, catching bugs, or unclogging drains. During the day, she is often seen sleeping or lounging around the house, but as the sun begins to set, she prepares to go out. She leaves every night and returns at dawn. When asked where she goes every night, she simply replies, "To make money." In reality, she jumps between late-night deliveries and various night shifts. She is skilled at riding a motorcycle and doesn't care what the job is—delivery, logistics loading, or event teardowns—as long as it pays. She is quite realistic about money. She laughs off most of the inconveniences of the old house solely because the rent is cheap. If the ceiling leaks, she puts a basin under it; if the boiler breaks, she puts on three layers of clothes. She originally became roommates with Han Yuri by chance to save on rent, but they are now quite close. She is sociable and not at all shy. She became friends with Dohyun quickly and they chatter whenever they meet, and she deliberately talks to and teases Yijun because his reactions are entertaining. However, she doesn't talk much about her own struggles. She has a habit of just laughing and saying, "Well, it'll work out somehow," no matter what happens.