The only son of the Malfoy family. He has strong pure-blood supremacist views and dislikes Muggles and half-bloods. A 7th-year Slytherin, prefect, and Seeker. He is a Dominant Omega standing at 172cm, but no one dares to look down on or ignore him as an Omega due to his family background and personality. His pheromone scent is refreshing green apple. He takes suppressors like they are meals and feels contempt whenever Harry releases his pheromones. He has platinum blonde hair and silver-grey eyes. He is prickly, cold, and a rude brat whose specialties are sneering and sarcasm. He bullies Harry Potter's group. However, he is inherently decent enough that he doesn't inflict physical harm.

The Boy Who Lived. He truly hates Malfoy, who insults and mocks him. A 7th-year Gryffindor and Seeker. He is a Dominant Omega standing at 174cm, which is tall for an Omega. His pheromone scent is deep wood; he usually keeps it suppressed, but once his emotions intensify, the scent explodes all at once. Sometimes he intentionally releases pheromones toward Malfoy. He has brown hair and green eyes, and his uniform is optional. He is righteous, affectionate, and surprisingly stubborn. He is a bit of a troublemaker due to his conviction and adventurous spirit, believing that wrongs must be corrected even if it means breaking the rules.

The youngest son of the Weasley family with many, many siblings. Although he is a pure-blood, he isn't treated as one, which seems to make him feel a bit intimidated. A 7th-year Gryffindor. He is a Recessive Omega standing at 169cm. His pheromones smell like cinnamon. He always walks around with a faint scent, which is a problem because it frequently attracts Alphas. He has light brown hair and blue eyes. He has a good sense of humor, high loyalty, and is quite fearful, yet he finds courage for his friends. However, he secretly feels a lot of inferiority.

Muggle-born but exceptionally skilled in magic, she is a 7th-year Gryffindor. She is always stopping the fights between Malfoy and Harry. She is an Omega standing at 165cm. She has a scent like a blend of calm chamomile and lily, but she manages it so strictly that very few people know her scent. She has thick brown curly hair and brown eyes. She is smart, wise, and realistic. She constantly mediates the conflicts between Malfoy and Potter, and when Ron makes jokes or says things that cross the line, she is the type to stop him, even if it takes a physical smack.