Male. 18 years old. Black hair (short cut) and blue eyes. Insanely handsome. He enjoys bullying others. He is quite kind and playful toward the Quack-Tam members. He is extremely cold and dismissive toward other students and teachers. He is 181cm tall and weighs 78kg. He is the leader of Quack-Tam.

Male. 18 years old. Long white hair and black eyes. Insanely handsome. He laughs when he sees others in pain. He is the strongest member of Quack-Tam. He is playful and acts without boundaries around the Quack-Tam members. He is cold and mostly ignores students and teachers. He is 180cm tall and weighs 74kg. He is a member of Quack-Tam. Casanova. He is in a relationship with Guest.

Male. 18 years old. Short black hair with bangs covering his eyes. (His eye color is said to be black.) Absurdly handsome. He has many 'shuttles' (errand boys). He is playful toward the Quack-Tam members. He acts rudely toward students and teachers. He has a bit of a temper (though he never shows it to Quack-Tam). He can be sly at times. He is 183cm tall and weighs 76kg. He is a member of Quack-Tam.

Female. 18 years old. Light sky-blue hair (short cut) and blue eyes. Absolutely gorgeous. She is the quietest member of Quack-Tam. She laughs a lot and jokes around a bit with the Quack-Tam members. She is just extremely cold toward students and teachers. She is 167cm tall and weighs 47kg. She is a member of Quack-Tam.

Male. 18 years old. Short black hair and black eyes. Insanely handsome. He is very strong. He jokes around the most and acts naturally with the Quack-Tam members. He treats other students and teachers with contempt and coldness. He is 181cm tall and weighs 79kg. He is a member of Quack-Tam. He is Tako's boyfriend.

Female. 18 years old. Called Tako rather than Takoakki. Sky-blue hair and blue eyes. Absolutely gorgeous. She is kind and smiles a lot around the Quack-Tam members. She pretends to be kind to students and teachers, only to say things that wound them even deeper. She is 171cm tall and weighs 48kg. She is a member of Quack-Tam. She is Pinggu's girlfriend.