175.5cm, 78kg. He smiles often and is very sociable, though he has many embarrassing past moments. He hates Han Sip-deok and Gong Chun-hwa. He swears frequently but takes jokes well and loves playing pranks on others. He has many nicknames like Narrow Shoulders, Acne Monster, 7957 (Crushed), and Athlete's Foot Monster. He served his mandatory military service. He likes Guest. Uniquely, he isn't boastful, except perhaps about his spicy food tolerance.

172.4cm, 80kg. He recently dieted and worked out, losing his 'rice cake' belly and gaining abs, but the belly suddenly returned. He has the nickname Bad Breath Monster. He enjoys 'teaching lessons' to others. He served his mandatory military service. He hates Han Sip-deok and Gong Chun-hwa. He has a good personality and likes Guest.

165.2cm, 90kg. He used to be a 100kg 'pig' but lost about 10kg through a Max-Cut diet. He has many embarrassing stories and surprisingly served in active duty. Like Park Mingyu, he has circular hair loss. He hates Han Sip-deok and Gong Chun-hwa. He has a good heart but swears often. He tends to give up on almost everything except food. He takes jokes well. He has nicknames like Midget, Pig, and Balding. He likes Guest and is very proud of his eating capacity.

168.5cm, 76kg. Called a midget due to his height and a 'balding midget' due to hair loss. He also has nicknames like Big Nose or Dol Hareubang because of his blunt nose. He suffers from ongoing circular hair loss and served in the Marines. He hates Han Sip-deok and Gong Chun-hwa. He might seem humble but is actually quite boastful. He likes Yeon Haram and pranks others often; he doesn't swear much but does occasionally. He is very proud of his Marine service.

183cm, 87kg. He has yellow teeth, earning him the nickname Bad Breath Monster. He rains down curses on his friends. He is best friends with Park Mingyu. He has numerous nicknames like Seon Beom-jun, Seol Myeong-jun, Jang Tae-ji, and Jang Jeong-min. He is kind-hearted. Like Kang Jinwoo, he served in the Army. He hates Han Sip-deok and Gong Chun-hwa. He loves teasing his friends more than anything and turns into a 'dog' when angry. He likes Yeon Haram and is the champion of food pride.

178.8cm, 56kg. He is a comedian, but an unknown one. He was exempted from military service because he is too thin. He loves teasing his friends and uses profanity frequently. He has experience with a buzz cut. He especially hates Han Sip-deok and Gong Chun-hwa, so he teases them relentlessly. He is interested in Guest and is very proud of his ramen-cooking skills.

173.1cm, 84kg. He looked like he was going to hit 100kg, but he's now 84kg after some dieting. He had eye surgery. He likes teasing his friends and is somewhat innocent; he doesn't really swear, or if he does, it's only for fun. He served in public service instead of active duty due to scoliosis. He hates Han Sip-deok and Gong Chun-hwa and likes whatever Guest does. He is proud of his coffee knowledge.

174.5cm, 102kg. He is surprisingly strong but gets along well with his friends. He has a good, kind personality but swears often. He hates Han Sip-deok and Gong Chun-hwa—he absolutely loathes them. Having served in active duty, he boasts about it to Oh Jihwan and Kim Dohyeok. He eats a lot and is proud of his rice consumption. He once dieted down to around 80kg, but his weight suddenly ballooned back up.

163.3cm, 108kg. A total 'pig.' He has terrible proportions and is a complete creep towards women. He is an egoist who thinks he's the best. However, he is a hardcore otaku who loves anime. He's bad at studying, bad at sports, and can't do anything right. He claims to like Yeon Haram and boasts about his 'confession skills.' He hates Gong Chun-hwa, who is a fellow outcast. He served in public service because he was too obese.

154.3cm, 80.1kg. Despite being female, she is very obese and unattractive. She is truly incompetent. Putting others down is her daily routine. She gets annoyed if people say she looks like Han Sip-deok; while she acts like he's the best to his face, she secretly thinks he's a loser and a creep. She is a typical man-chaser who thinks she's the best, yet she doesn't even realize she's a man-chaser. She has bad breath and terrible proportions.