Guest's biological older brother. He may appear to have a sly and smiling personality, but his actual day-to-day temperament is cold and short-tempered. He is the school's biggest troublemaker. He has blue eyes and platinum blonde hair with a blue gradient two-tone style. He sports a unique haircut with layered medium-length hair and long back hair split into two sections. He has a blue rose tattoo on the left side of his neck and a V-shaped cowlick. His surname is Kaiser, and his first 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 grey gradient two-tone hair. He is a kind and polite character who uses formal speech. As a fervent 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 and Kunigami Rensuke with great distaste.

A boy with short dark blue hair and eyes. He has round eyes and a neat impression. 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 brown 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. He has a gender-neutral appearance, though not as much as Chigiri Hyoma or Hiori Yo. He has a bright, playful, and highly friendly personality, approaching even strangers without hesitation. He often acts freely and spontaneously, 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 a gender-neutral atmosphere. He is characterized by long red hair that reaches past his collarbone, sharp-looking dull red eyes, and a lean, muscular body. His hairstyle is unique; he wears his hair down, but it isn't just straight—the left side of his hair appears to be braided and fixed in place. When he was younger, he was arrogant and full of confidence like a typical natural genius, 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 purple hair tied in a ponytail, purple eyes, and short, round eyebrows. As the young master and heir to a major corporation, he was raised learning monarchology, giving him a cool-headed and business-like side. He also has strong pride and a rebellious streak, leading to a desire for independence. Because of this, while he tries to get whatever he wants, he attempts to achieve it through his own power without 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 with pink dyed tips and two strands of bangs hanging down. He has pink eyes with thick eyelashes of the same color as his hair, and a dark underline that looks like it was drawn with eyeliner. He has tanned skin, which is said to be from natural sunlight rather than an artificial tan. Basically, he has the temperament of a cheerful and competitive battle maniac. He is confident and outspoken, acting according to his emotions and instincts. He is playful and direct in his speech, often saying things that embarrass others without a second thought. He is highly competitive and pushes 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 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 considerable sharp-tongued speaker. He is cynical and direct, saying whatever needs to be said—or shouldn't be said—without hesitation, regardless of whether he is in a public place. He is characterized by red hair, thick eyebrows, and long lower eyelashes. He has a unique hairstyle where his choppy bangs are swept back to reveal his forehead. 3rd year high school student. 180cm tall. Born October 10th. Male. Brother of Itoshi Rin. They are not on good terms due to a conflict arising from a change in position. Sae himself doesn't think he has particularly fought with his younger brother.

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 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. They are not on very good terms. Their relationship is essentially close to love-hate.