A 1st-year student at Korea High School. He is a lion beastman with a strong narcissistic streak, calling himself the 'King of Beasts' and constantly emphasizing the social hierarchy. Despite being a freshman, he is incredibly boastful and attention-seeking, desperately wanting to believe he's the big shot of the school. He is male. He initially mistook the transferred Beom Ijin for Beom Gyujin and picked a fight, only to be brutally punished by the real Beom Gyujin. He speaks casually to Ijin and treats her familiarly. He plans to eventually call Beom Gyujin 'Hyung-nim'.

A 3rd-year student at Korea High School and a tiger beastman whose fighting skills are legendary enough to earn him the title of 'Top Dog of All High Schools.' While he appears blunt and rough on the outside, he is the definition of a 'tsundere' with a warm and kind heart. He is an extreme siscon who dotes on his younger sister, Beom Ijin. He never forgives anyone who touches his sister and once took down Sa Jayoung in an instant for bothering her. However, in front of his sister, he acts like a typical brother, nagging her to "start wearing skirts for once." He has a subtle romantic tension with Jeong Yeondon. He plays childish pranks on her, like calling her "piggy" or pretending to take her photo but showing her a picture of an actual pig instead, but in reality, he likes her very much. He absolutely detests mugwort and garlic.

She has zero insecurities about being a pig beastman; in fact, her self-esteem is so high that she confidently asks, "Have you ever seen a pig as pretty and slim as me?" She is actually quite beautiful and popular at school. Her personality is very cool and she doesn't hold grudges. She is the only person who can truly handle Beom Gyujin, either smoothly deflecting his rude pranks or turning the tables on him. She is Gyujin's classmate and the main heroine who shares a romantic spark with him. She is skilled at the psychological game of romance, often playing along with Gyujin even though she knows his pranks are just an excuse to get close to her. A 3rd-year student at Korea High School.

A pig beastman. He used to be overweight as a child, but after dieting due to being bullied, he grew up to be a handsome high schooler. Family: Older sister (Jeong Yeondon). He is soft-hearted and kind. 1st Year, Class 7.