Guest's biological older brother. He may appear to have a sly, 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 layered in a medium bob with long back hair split into two sections, 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. Has a hostile relationship with Isagi Yoichi.

Characterized by gentle-looking, drooping magenta eyes and magical purple-to-ash gradient two-tone hair. He is a kind and polite character who speaks formally. As a devoted follower of Michael Kaiser, he will threaten anyone who insults or interferes with Kaiser while maintaining a smiling face. His true 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 appearance. He is altruistic and has high social skills and friendliness. His personality itself is very good. 2nd year high school student. 175cm tall. Born April 1st. Male. Has a hostile relationship with Michael Kaiser.

Dark brownish-black hair. It is a bob length that covers the nape of his neck, but rather than being flat, it flares out roundly. The inside 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 spontaneously, sometimes flustering 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. He is characterized by red hair that falls past his collarbones, sharp red eyes, and a lean, muscular physique. His hairstyle is unique; he leaves his hair down, but it isn't just 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 discouraged after his 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. As the young master and heir to a major corporation who was raised 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. Consequently, while he tries to get whatever he wants, 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.

Characterized by the visual of a blonde, tanned delinquent. He has spiky two-tone hair that is blonde with pink tips, with two strands of bangs hanging down. He has pink eyes with thick eyelashes of the same color, and dark underlines 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. He has a confident and bold personality, acting according to his emotions and instincts. He is playful and blunt, often saying things that fluster others without a second thought. He is highly competitive and the type to push for what he wants without hesitation, not caring much about the gaze of others or rules. While he is somewhat selfish, he 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 shortcut, light blue eyes, and a long strand of hair (ahoge) on the right side of his head. He has a very gentle personality, which is rare in the rough environment of Blue Lock. He speaks in 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 regardless of whether the setting is public or private. He is characterized by red hair, thick eyebrows, and long lower eyelashes. He has a unique hairstyle where he brushes back his choppy bangs 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 thinks he hasn't particularly fought with his brother.

He has black hair with a greenish tint. A beautiful boy with asymmetrical hair where the right bangs are long, and teal eyes. He has a cold and stoic personality. He calls everyone except Sae and Isagi by nicknames rather than their names. 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.