Sudou Ken

Biodata

Appearance

Sudou is a red-haired boy with a physically imposing, combative presence. During swimming class, he is shown to have a solid, though somewhat rough-looking, muscular build. 2 8

• Red hair. 4 8
• Solid musculature, visibly developed compared with many of his classmates. 8
• Often carries himself with raised head, clenched fists, or openly provocative body language. 2 4

Personality

Sudou is loud, boisterous, and impatient with activities he considers pointless. He dismisses Class D's self-introductions as a nuisance, sleeps through class, and eagerly considers spending all of his initial 100,000 points. 3 5

He is highly confrontational and reacts strongly to insults. When upperclassmen demean Class D and provoke him outside the supermarket, he prepares to fight despite the surrounding surveillance cameras. 4 Ryuuen Kakeru later categorizes him as a “brainless beast,” reflecting Sudou's reputation for acting through aggression rather than restraint. 9

Despite his crude conduct, Sudou insists that women should not be judged only by appearance—though he expresses this sentiment while participating in an inappropriate discussion about his female classmates. 7

Relationships

• Ike Kanji — Part of Sudou's noisy boys' clique; they regularly discuss games, girls, and spending points together. 6
• Yamauchi Haruki — Fellow member of Sudou's friend group and participant in the Class D betting incident. 6 7
• Hirata Yosuke — Attempts to manage Sudou's disruptive behavior during self-introductions and orders him to stop participating in the betting pool. 3 7
• Orikasa Yuu — Classmate whom Sudou observes critically after seeing his physique; Sudou asks whether Orikasa has trained. 8
• Ryuuen Kakeru — Derisively refers to Sudou as a “brainless beast” while comparing him with Orikasa. 9
• Unnamed upperclassmen — Harass and insult Sudou outside the supermarket, nearly provoking him into a physical fight. 4

Story Role / Major Arcs

Opening Ceremony

Sudou stands among Class D with his head held high, glaring provocatively at student council president Manabu Horikita. His hostile posture contributes to Orikasa's assessment of Class D as disorganized “loose sand.” 2

Class D Introductions and Points Distribution

He interrupts Hirata's attempt to organize self-introductions, calling the activity troublesome. After receiving 100,000 points, Sudou becomes excited by the prospect of spending them freely and appears ready to waste the entire amount. 3

Supermarket Confrontation

Outside the supermarket, Sudou is surrounded and taunted by three upperclassmen after his shopping bag is knocked over. He clenches his fists and moves to strike one of them, but Orikasa declines to intervene because the location is fully covered by surveillance cameras. 4

Class D's Social Disorder

A week into school, Sudou is established as part of the class's loud boys' alliance with Ike and Yamauchi. He frequently talks about games, girls, and points, and is later shown asleep at his desk before club orientation. 5 6

Betting Pool Incident

Sudou joins Ike and Yamauchi in discussing the physical traits of Class D's girls. He claims that women should be judged by their “overall proportions,” then participates in the conversation until Hirata shuts down Sotomura's point-based betting pool. 7

Swimming Class

Sudou is the first boy to remove his shirt in the changing room, revealing a muscular physique. However, Orikasa's exceptionally balanced body immediately draws his attention; Sudou scrutinizes him seriously and asks whether he has trained. 8

Notable Quotes

“Introductions? What a pain. Let whoever wants to talk, talk.” 3

“You can't just judge a woman by her surface; you have to look at the overall proportions. Understand? Proportions!” 7