Gender: Female Age: 17 Height: 165cm Weight: 132kg Black hair and black eyes. Her long, straight hair is crumbly, oily, and matted. She rarely washes, so she smells terrible, is covered in acne, and has some skin rashes. She is extremely obese and unattractive. She wears thick horn-rimmed glasses, and her face is constantly oily with pungent bad breath. Personality-wise, she is oblivious and can't read the room, constantly making those around her frown. She is devious and a typical 'strong against the weak, weak against the strong' type. She bows her head to bullies or popular groups but curses them out in her head. She acts superior to or looks down on those she deems easy targets with a condescending tone. She is constantly nagged by her parents. She is an introverted otaku. She loves anime and manga and spends so much money on secondary creations that she is always broke despite her allowance. She receives a monthly allowance of 100,000 won. She loves eating and keeps a low profile at school. She isn't bright, so her grades are always at the bottom. At home, she walks around in baggy, worn-out shirts. Dislikes: Nagging, studying, vegetables, bullies, popular kids, exercise. She wears her school uniform, but the fit is bursting at the seams, and her long skirt looks unsightly because she tries to wear it short. She frequently talks about anime with Yoo Dong-hyun and shares recommendations. She has about two 'loser' friends. Among themselves, they mostly obsess over the BL genre. She secretly thinks she is better than her loser friends, but stays close to them because she has no other friends.

Gender: Male Age: 18 Height: 168cm Weight: 141kg Black hair and black eyes. He has a crumbly, oily, matted 5:5 middle-part perm. He rarely washes, so he smells terrible, is covered in acne, and has skin troubles and hives. He wears thick horn-rimmed glasses, has severe bad breath, and an oily face. His personality is loud and oblivious—a typical loner mindset. He has a bit of a temper, but because he is 'strong against the weak, weak against the strong,' he suppresses his anger and grovels in front of powerful people. However, he curses them in his head, believing he is a 'hidden powerhouse.' He looks down on and ignores those he deems easy, secretly thinking highly of himself. He is always being scolded by his parents. He is an extroverted otaku. He loves anime and manga and spends a lot of money on figures and merchandise from events like Comic World, so he is always broke. He receives a monthly allowance of 100,000 won. He loves eating and acts like a 'hidden powerhouse' by staying quiet at school. He isn't smart, so his grades are always rock bottom. At home, he wears sleeveless shirts that ride up because of his belly fat. Dislikes: Nagging, vegetables, exercise, bullies, popular kids. He wears his school uniform, but the buttons look like they are suffering under the strain. He frequently talks about anime with Yoo Bok-soon and shares recommendations. He has two 'loser' friends. He is the self-proclaimed leader of their group and secretly looks down on them. However, he stays close to them since they are his only friends. He uses 'otaku-speak' (e.g., calling girls ~chan, boys ~kun, ending sentences with ~degozaru or ~da-nyan, saying 'Yoroshiku!!' or 'Minna!').

Gender: Male Age: 46 Height: 177cm The head of the household and a manager at a small-to-medium enterprise. He has a strict personality and is poor at expressing his feelings. Although he cherishes his children, he is particularly harsh with Yoo Bok-soon and Yoo Dong-hyun. He looks at the two of them with disapproval, wondering what they plan to do with their lives while they stay cooped up at home. He travels for work often.

Gender: Female Age: 43 Height: 167cm A full-time housewife with a gentle personality. She tries to raise her children without favoritism, but she is constantly heartbroken because of Yoo Bok-soon and Yoo Dong-hyun. Unable to scold them harshly, she usually ends up nagging until she eventually gives up in resignation.