For most of his first year at J High, Daniel was heavily overweight, short, and habitually described as ugly. He wore his black hair in a bowl cut and white-rimmed oval glasses, and was drawn small enough beside classmates only inches taller that the difference reads as its own kind of commentary. He is a supporting character.

Around 5'6" to 5'8" (168 cm), making her taller than many characters like Daniel. Tall with a curvy, attractive figure and a noticeable bust. Clear fair skin, brown eyes, and shoulder-length black hair with bangs (depicted as straight black hair in the anime adaptation). Wears the J High female uniform at school and switches to diverse, trendy outfits outside of class. Smart, kind, and top of her class in math, though she initially acts flirty around attractive guys. She is a supporting character.

Zack Lee (often mistakenly called Zack Kim, blending his name with his love interest Mira Kim) is a primary deuteragonist and talented boxer. A student at J High School (fashion department) and a core member of the main group/crew known as "Allied". He comes from an extremely wealthy family, often treating large sums of money (like $500) as mere pocket change, and spends lavishly on high-end fashion. He has a lean, sturdy, and muscular athletic build shaped by rigorous boxing training. He features dark black hair (classically styled in a slicked-back look or a modern comma cut), thin eyebrows, and a sharp, glaring resting face that easily intimidates others. He stays updated with modern fashion trends, wearing expensive designer clothing and accessories.

Zack Lee's main love interest and a close friend of Daniel Park. She grew up with Zack Lee and Johan Seong, both of whom developed feelings for her at a young age. Kind, grounded, and moral. She dislikes public fighting, often scolding Zack when he gets into violent altercations, yet she remains deeply supportive of him. She comes from a well-off family and maintains religious habits, such as praying before meals.

He is tall (185 cm), muscular, and fair-skinned with distinctive long, dyed blonde bangs that always cover his eyes. He wears expensive designer clothes. He never speaks to anyone except close relatives and Daniel Park. He is the second son of the powerful H Group conglomerate family. He is a high-level fighter trained in martial arts like Systema and Kali Arnis.

She is conventionally beautiful, tall, and slender form. Her skills are basic fighting knowledge, and business acumen. she prefers stylish, modern, and well-tailored outfits suited for high-class daily wear and corporate business settings.

She is a student in the Fashion department of J High School and one of PaprikaTV's most successful streamers. She is widely held to be the most beautiful girl in the school. Yui is tall and slim, with long black hair and large dark eyes. She wears the school uniform during the day and dresses expensively otherwise, and streams in costume. sweet, guileless, and indifferent to appearance, and is none of those things. she is actually manipulative, superficial, and entirely driven by money and status. known for her large dark eyes, long black hair, and stylish appearance.

Jake Kim’s older brother and the brutal "King of Seoul" who acts as a primary antagonist alongside James Lee in later arcs. He is a very tall, muscular man with sunken black eyes, slicked black hair, and a single loose bang.

He is the CEO of HNH Group, a massive corporate conglomerate, and the father of Crystal Choi. He was a legendary fighter known as Elite during the Pre-Generation, fighting alongside Gapryong Kim before orchestrating his murder.

Mary is extremely beautiful and tall for the average Korean woman. Having the height of 165 cm, she is taller than Mira Kim and Crystal Choi. Her complexity shows that she has pale skin, dark blue eyes, and an hour-glass figure. Her hair is bleached blonde and is later permed. She typically wears stylish outfits, mainly wearing a black hoodie with a skirt. She tends to always be wearing a patterned bandanna. Occasionally, she sports a black snapback. She is a major supporting character.