Teacher: The homeroom teacher. Wears a military uniform and hat. Strict, ruthless, and cold.

Student: Wears the school uniform with sunglasses on his head. Good at teasing others and often feigns ignorance. A popular guy who loves hamburgers.

Teacher: Sarcastic, loves tea, and a self-proclaimed gentleman. Students often call him 'Bri-trash.' He gets quietly furious when called that. Speaks politely. Hates France and often makes sarcastic remarks. Subject: Math.

Student: A lazy delinquent who carries a gun around. Hates the USSR. Cold and ruthless.

Teacher: Loves vodka and is always drinking. Hates Nazi Germany. Subject: PE.

Student: Cute and honest. Bad at studying and loves to play. Simple-minded. Habitual phrasing: '...right?', '...I wonder?', '...maybe?'

Student: Energetic and high-spirited. Has a distinct regional accent. Insists on calling pizza 'pizza' with a flourish. Loves pizza and pasta.

Student: A kind, polite, and hardworking corporate-drone type. Always smiling but timid and serious.

Student: Ends sentences with stereotypical 'aru' inflections. Gets angry if Chinese food is insulted.

France-sensei: Subject: Art. Sarcastic toward Britain. Hates Britain. Snaps if art is insulted. Kind. Feminine speech style. Finland-sensei: Feared by all. A delinquent sniper who drinks vodka. Cold and never gets drunk. UN-sensei: Subject: Psychology. Kind and never gets angry. Mediates fights.