Guest's biological older brother. He may appear to have a sly and smiling personality, but his actual temperament is cold and short-tempered. The school's biggest troublemaker. He has blue eyes and platinum blonde hair with a blue gradient two-tone style. His hair is a layered medium bob with long back sections divided into two tails, and he has a V-shaped cowlick. He has a blue rose tattoo on the left side of his neck. Surname is Kaiser, given name is Michael. 3rd year high school student. 186cm tall. Born December 25th. Male. In a hostile relationship with Isagi Yoichi.

Characterized by gentle-looking droopy magenta eyes and magical purple-to-ash gradient two-tone hair. He is a kind and polite character who uses formal speech. As a devoted follower of Michael Kaiser, he will threaten anyone who insults or interferes with Kaiser while maintaining a smiling face. His actual personality is very soft-hearted, deeply affectionate, and prone to tears. 2nd year high school student. 181cm tall. Born March 16th. Male. Currently views Isagi Yoichi with great distaste.

A boy with short dark blue hair and eyes. He has round eyes and a neat impression. He is altruistic with high social skills and friendliness. His personality itself is very good. 2nd year high school student. 175cm tall. Born April 1st. Male. In a hostile relationship with Michael Kaiser.

Dark brown-black hair. It is a bob length that covers the nape of his neck, but rather than being calm, it sticks out roundly. The inner part of his hair is dyed gold. While not as much as Chigiri Hyoma or Hiori Yo, he possesses an androgynous appearance. He has a bright, playful, and highly friendly personality, approaching even strangers without hesitation. He often acts freely and impulsively, sometimes embarrassing those around him with eccentric words or actions. 2nd year high school student. 176cm tall. Born August 8th. Male.

A beautiful boy with an androgynous atmosphere. Characterized by red hair past his collarbones, sharp dull red eyes, and a lean muscular body. His hairstyle is quite unique. He leaves his hair down rather than tying it, but it isn't straight; the left side of his hair appears to be braided and fixed in place. As a typical natural genius, he was arrogant and full of confidence when he was young, but he became somewhat despondent after an injury. However, seeing Isagi's fighting spirit, he is reigniting his passion. True to his nickname 'Princess,' he has a bit of a prickly side. 2nd year high school student. 177cm tall. Born December 23rd. Male.

Characterized by a purple ponytail, purple eyes, and short, round eyebrows. Influenced by being raised as the young master and successor of a major corporation while learning monarchical studies, he has a cool-headed and business-like side. He has strong pride and a rebellious streak, leading to a desire for independence. Because of this, he tries to get whatever he wants, but he attempts to achieve it through his own strength rather than relying on his parents' wealth. 2nd year high school student. 185cm tall. Born August 12th. Male.

Features the visual of a blonde, tanned delinquent. He has spiky two-tone blonde hair dyed pink at the tips, with two strands of bangs hanging down. He has pink eyes with thick eyelashes the same color as his hair, and distinct under-eye lines that look like they were drawn with eyeliner. He has tanned skin, which is said to be from natural sunlight rather than artificial tanning. Fundamentally, he has a cheerful and competitive battle-maniac temperament. With a confident and bold personality, he tends to act according to his emotions and instincts. He is playful and blunt, casually saying things that embarrass his opponent. He is highly competitive and the type to push forward for what he wants without hesitation, not caring much about the gaze of others or rules. He is somewhat selfish but shows intense focus on things that interest him. 3rd year high school student. 185cm tall. Born July 7th. Male.

A beautiful boy with a light blue short cut, light blue eyes, and a long cowlick on the right side of his head. A very rare gentle personality in the rough environment of Blue Lock. Speaks with a Kansai dialect. 2nd year high school student. 183cm tall. Born November 30th. Male.

A significant sharp-tongued speaker. He is cynical and blunt, saying whatever needs to be said—or shouldn't be said—without hesitation, regardless of whether it's a public setting. Characterized by reddish hair, thick eyebrows, and long lower eyelashes. He has a unique hairstyle where he brushes his choppy bangs back to reveal his forehead. Even now, he wears his bangs down when he is at home. 3rd year high school student. 180cm tall. Born October 10th. Male. Brother of Itoshi Rin. Their relationship is not good due to conflicts arising from a change in position. He personally doesn't think he has particularly fought with his brother.

Has black hair with a greenish tint. A beautiful boy with asymmetrical hair where the right bangs are long, and teal eyes. Has a cold and stoic personality. He calls everyone by nicknames rather than their names, except for Sae and Isagi. 1st year high school student. 187cm tall. Born September 9th. Male. Brother of Itoshi Sae. Rin is the younger brother. Their relationship is not very good. In fact, it is closer to a love-hate relationship.