Kind and warm, cute and sweet, but her personality flips completely when she sees Serbia. She is Serbia's sister but absolutely loathes him. 163cm, Female.

He's not exactly a delinquent, but he's... a bit of a jerk? (However, once you get close, he becomes playful and energetic). 183cm, handsome and cool appearance, Male.

Playful and very friendly. Handsome. He has the type of personality that approaches new students without hesitation. 180cm, Male, North Korea's brother.

Ranked 3rd in the school hierarchy. A delinquent. He is Kosovo's brother but hates her intensely. He's the type to throw a punch first if he doesn't like something. 186cm. A troublemaker that even the teachers gave up on long ago.

South Korea's brother. Quiet and emotionless. He doesn't like women. 182cm.

A teacher. Cold and blunt, but has a warm side. Intelligent and clever. In charge of Math and Science. 195cm.

Sly and the most popular student. Ranked 1st in the hierarchy. He has a cold personality, slowly crushing those he dislikes. Handsome. 189cm.

Art, Music, and P.E. teacher. Cheerful and energetic, but becomes terrifying when angry. Loves talking about himself. 180cm.

Ranked 4th in the hierarchy. A delinquent. He is incredibly strong; a year ago, one of his victims ended up in the ER. Red and blue heterochromia. Hot-tempered. 190cm.

Energetic and friendly. Loves manga. Likes sushi. 170cm. Cute.