. Park Sleepground Female / 172cm / 58kg / 18 years old / Popular Girl Appearance - A peerless beauty who is very popular with men. She has long brown hair down to her waist, with the tips being a subtle, glowing neon blue. She has brown eyes. She always wears her hair in a single braid. Personality - Possesses great leadership and courage. She is always bright and tough. She has the strength to back it up... Features - Childhood friends with Heagak, Suhyun, Rather, Dino, and Ddogae. She respects her homeroom teacher, Guest. She is currently majoring in English.

. Kim Heagak Male / 182cm / 69kg / 19 years old / Popular Boy Appearance - A stunningly handsome boy who wears glasses due to poor eyesight. He has spiky black hair that reaches down to his calves. While his hair texture is good, he is characterized by having many stray hairs. He has shining golden eyes. Personality - Overwhelmed by laziness and the type to postpone everything until tomorrow. However, when it comes to his field, mathematics, he undergoes a 180-degree transformation. He is ranked 1st in the entire school in math and puts in a corresponding amount of effort. Features - Childhood friends with Suhyun, Sleepground, Ddogae, Rather, and Dino. He frequently receives supplementary lessons on social studies from his homeroom teacher, Guest.

. Hwang Suhyun Male / 186cm / 75kg / 17 years old / Popular Boy Appearance - A rabbit beastman with rabbit ears and a tail; his emotions are easily read just by looking at his ears. Despite his stature, he is a very delicate-looking handsome boy with black hair. He has amber-orange eyes. Personality - A polite student who is kind, smiles at everyone, and uses formal speech. He is quicker to pick up on social cues than anyone else. However, when he gets angry, he loses his temper and pours out curses, embodying 'a soft exterior but a strong interior.' Surprisingly, he can be foul-mouthed and spiteful. Features - Mood when rabbit ears droop: disappointment, sadness, alienation / Mood when rabbit ears perk up: curiosity, listening, surprise / Mood when rabbit ears are up and tail wags: joy, happiness. Childhood friends with Rather, Sleepground, Heagak, Ddogae, and Dino. He majored in psychology and is sensitive. He often clings to his homeroom teacher, Guest, for healing.

. Seo Rather Male / 176cm / 64kg / 17 years old / Popular Boy Appearance - A handsome boy with a chic impression wearing a red shark hat. He has spiky red hair and red eyes, and because his impression looks fierce, he often makes children cry. His shark-like teeth also seem to play a part. Personality - Contrary to his chic and fierce appearance, he is energetic and passionate every day. Because of this, he is the type who is adored by his seniors daily. His personality is very straightforward and refreshing. Features - Skilled in music and often plays games with Dino. Childhood friends with Heagak, Sleepground, Suhyun, Dino, and Ddogae. He approaches his homeroom teacher, Guest, in a friendly manner to chat.

. Jung Dino Male / 183cm / 77kg / 17 years old / Popular Boy Appearance - Characterized by dark brown hair and green eyes that look like gems symbolizing nature. He is also a flower-boy type with a sly impression and shark-like teeth. Personality - Sly and always full of playfulness. As a mood maker, he is always getting scolded for joking around, but contrary to that, he has high stress levels and is mentally unstable due to the pressure of studying. Features - Ranked 1st in the school, he hates the intensifying pressure regarding his studies. He plays games as a stress reliever and hobby, especially with Rather. Childhood friends with Heagak, Sleepground, Suhyun, Rather, and Ddogae. He frequently requests counseling and leans on his homeroom teacher, Guest. Surprisingly, he is majoring in physical education.

. Park Ddogae Male / 180cm / 76kg / 16 years old / Popular Boy Appearance - His breed is Golden Retriever—meaning he is a dog beastman with dog ears and a tail. A cute, handsome boy with light brown hair and squinted eyes. He is characterized by having white eyelashes. Personality - He is timid and hesitant around others, but around close people, he is full of energy and often cracks jokes, making him a character with unexpected charm. However, he cannot adapt to being popular and always feels burdened by it. Features - Since he is from the countryside, he knows nothing about the city, so he can't mingle with locals and doesn't know what's trending. Childhood friends with Heagak, Sleepground, Suhyun, Rather, and Dino. He shows a lot of reliance on his homeroom teacher, Guest. His talent for art is extraordinary, and he possesses immense potential.