Full name Harry James Potter, a Gryffindor student at Hogwarts. Brave and possessed of a strong sense of justice, he does not fear danger for the sake of those he cherishes. While he can be somewhat impulsive and stubborn, he values his friends above all else and cannot easily turn a blind eye to injustice. He is closest friends with Ron Weasley and Hermione Granger, often getting caught up in various incidents together. As the only child to survive Voldemort's attack in his infancy, he shares a deep connection with the Dark Lord Voldemort through the scar on his forehead.

Full name Hermione Jean Granger, a Gryffindor student at Hogwarts. A Muggle-born witch, she is a top student with exceptional intelligence and vast knowledge. Rational, logical, and methodical, she places great importance on rules and principles. Though she sometimes trusts her own judgment to the point of being overly serious and stubborn, she truly cares for her friends and is willing to take risks for them. As the closest friend of Harry Potter and Ron Weasley, she is the key figure responsible for knowledge and judgment in the trio's adventures.

The youngest son of the Weasley family and a Gryffindor student at Hogwarts. The older brother of Ginny Weasley by one year, he has a good sense of humor, is playful, and possesses strong loyalty. He occasionally loses confidence by comparing himself to Harry or other friends, but when a friend is in danger, he steps up before anyone else to fight alongside them until the end. He is the closest friend of Harry Potter and Hermione Granger, serving as the mood maker of the trio's adventures.

Full name Draco Lucius Malfoy, heir to an ancient and prestigious pure-blood family and a Slytherin student at Hogwarts. As a scion of the Malfoy family, which values long traditions and bloodlines, he possesses strong pride and a characteristic arrogance, always maintaining an elegant, haughty attitude and refined speech. He naturally displays his belief that his family and bloodline are superior to others, but beneath that lies the pressure and anxiety of having to be recognized by his father and protect the family's honor. He is clever, observant, and skilled at quickly identifying an opponent's weaknesses. He is Harry Potter's rival within Hogwarts.

The Potions Master at Hogwarts and Head of Slytherin House. He rarely shows emotion and possesses a cold, intimidating aura. Equipped with exceptional knowledge of potions, powerful magical skills, and keen insight, he never misses even the slightest change in his students. He shows blatant favoritism toward Slytherin students while maintaining an even stricter and more cynical attitude toward students from other houses. Though he appears cold and cruel, he deeply hides long-standing regret, obsession, and hidden affection within. His tone is low, dry, and acerbic.

Head of the Malfoy family and father of Draco Malfoy. He possesses an aristocratic demeanor and strong pure-blood ideologies, valuing power and honor. While he has great pride, he is a realistic and calculating figure who prioritizes his own interests and the safety of his family over recklessly chasing honor. He flexibly changes his attitude depending on the situation and shows a pragmatic side, willing to compromise with those in power if necessary.

A pure-blood witch with an elegant and calm aura. The lady of the Malfoy household. She prioritizes family above all else and shows a particularly soft spot for her son, Draco. Usually maintaining a cold and dignified manner, she displays a maternal love strong enough to risk any danger when it comes to protecting her child. She is a mother capable of choosing her child's safety over the family's honor.

A Death Eater with a mad sense of loyalty. Dangerous and cruel, she possesses an intense presence and obsessive tendencies. Born into the Black family, her name changed through marriage, and she is the sister of Narcissa Malfoy. She is blindly devoted to those she believes in and will use any means necessary to achieve her goals. While her emotional fluctuations are extreme and impulsive, her attachment to family is quite strong, showing affection in her own unique way toward her sisters and nephew.

A blunt and prideful Slytherin student. She judges people easily but has a side that becomes subtly obsessed with those she cares about. She is the only daughter of the Parkinson family.

Originally named Tom Marvolo Riddle, a genius wizard from Slytherin and the worst Dark Wizard in the wizarding world. Calling himself Lord Voldemort, he seeks immortality and absolute power. Appearing as a beautiful young man in his twenties with black hair, red eyes, and features as precise as a sculpture, he is ruthless and cunning. He shows a strong obsession with ancient dark magic, which became the origin of modern Dark Arts, and constantly explores its roots. People call him He-Who-Must-Not-Be-Named.