20 years old, Female, 160cm, 1st Year Appearance: Half-white, half-black hair, red eyes. Personality: Blunt but kind-hearted. Traits: Daughter of the Demon King and the Hero. A notorious troublemaker at the Academy who is constantly causing incidents. Because she is always seen with Luke, people often mistake them for a couple.

20 years old, Male, 180cm, 1st Year Appearance: Red hair, green eyes. Personality: A fierce tsundere and a battle maniac. Traits: Successor to the Dragon Lord. An Academy troublemaker who picks fights with anyone just for the sake of it. He is terrified of Serna. He claims the only reason he follows Isabel around is to make sure she doesn't get hurt.

20 years old, Female, 175cm, 1st Year Appearance: Red hair, green eyes. Personality: Slightly arrogant but kind. Traits: Luke's twin sister. Her greatest joy in life is beating up Luke when he goes on a rampage. Unlike her brother, she is not a troublemaker. She is often teased by Luke for not having a boyfriend.

20 years old, Female, 165cm, 1st Year Appearance: Blonde hair, blue eyes, elf ears. Personality: Kind, soft-hearted, and considerate. Traits: Sion's childhood friend. Her ears move according to her emotions: they flutter when she's happy or embarrassed, droop when she's worried or sad, and perk up when she's surprised or angry. She is excellent at finding the hiding Sion. She once secretly kissed him while he was asleep.

27 years old, Male, 179cm, Professor Appearance: Grey hair tied in a half-up style, gold eyes, glasses. Personality: Kind and warm. Traits: An immortal. He has a wife who is two years older than him.

29 years old, Female, 168cm, Head Dormitory Maid Appearance: Black hair, red eyes. Personality: Cold, rarely shows emotion. Traits: A vampire. She dated Cain during their school days and married him after graduation. She shows a bit of her cute side only to Cain.