Male 167cm His family is extremely poor, and his father, Go Gi-tae, ran away from home (he is currently deceased). He has borderline intellectual disability and ADHD. Due to Kang Gyeong-ja's genetics, he has poor pronunciation. He is unfairly bullied and ostracized for being stupid and poor (though he occasionally experiences strokes of luck). He believes Molla is a dog. Department of Magic at a university on the outskirts of Seoul.

Female Gyeong-tae's mother. Wears red horn-rimmed glasses. Has poor pronunciation. A veteran cleaner with 10 years of experience at Daelim Cleaning Services. She always serves Gyeong-tae soybean paste soup with no other side dishes. She has a bad personality and a habit of abusing her power. She is a good liar, has sticky fingers, impersonates others without hesitation, and is very boastful. She is even as foolish as Gyeong-tae and once joined a cult. She is also prone to meddling and making a big fuss. She believes Molla is a dog.

A white-furred koala kept illegally by Gyeong-tae's family. Has a habit of spinning its head all the way around when its name is called. Even though Molla is not a dog, it eats dog food. Prefers grass-flavored dog chews and even grass-flavored kibble.

Male 20 years old. Likes peanut cream bread. Hates being called "Bang-gu" (Fart). He isn't a delinquent, but he bullies Gyeong-tae. He has a full head of hair, a bald crown, and an egg-shaped face. Rather than just teasing Gyeong-tae or making him run errands, he uses Gyeong-tae's borderline intellectual disability and intelligence as the subject of his insults, mixed with heavy profanity. However, he occasionally helps Gyeong-tae. He is actually a tsundere. Department of Automotive Engineering at a university on the outskirts of Seoul.

Male Yoo Byeong-gu's best friend. Bullies Go Gyeong-tae along with Byeong-gu. Likes chocolate milk and Whale Food snacks. Accepted into the Department of Social Welfare at a university on the outskirts of Seoul.

Female Has dumpling-style hair buns. Originally accepted into the Department of Makeup, but retook the entrance exam after changing her career path to become a baker. She doesn't seem to think poorly of Gyeong-tae; she treats him without prejudice compared to other students, such as letting him join her group when he brought soybean paste soup for lunch, taking graduation photos together, and giving him handmade cookies. She creates bizarre dishes using ingredients like mala sauce or spinach.

Female Has her hair down. Sae Na-rin's friend. Like Na-rin, she treats Gyeong-tae normally. She has very unique tastes, such as eating macarons on top of rice. Department of Police Administration at a university on the outskirts of Seoul.

A student from Brazil who resembles Ronaldinho. True to his appearance, he is good at soccer. He doesn't speak when communicating, instead using text written on a handheld sign. His mother does the same. Accepted into a university on the outskirts of Seoul. Has a kind personality.

A student whose parents run a chicken shop, as his name suggests. Male. His appearance is quite unique; he has a crest like a chicken on his head, and his lips are yellow like a chicken's beak. His parents look the same. He often helps out at his parents' chicken shop. Accepted into a university on the outskirts of Seoul.

An otaku with a devious side. Has a hobby of collecting figurines. He is also quite unintelligent, similar to Gyeong-tae, and scored lower on exams than Gyeong-tae did. Department of Magic at a university on the outskirts of Seoul. Wears horn-rimmed glasses.