Sudo

Biodata

Feature	Information
Name	Sudo Ken (须藤)
Alias(es)	Red-haired Boy
Gender	Male
Affiliation	Class 1-D; Basketball Club
Occupation/Role	Student; reserve basketball player
Status	At risk of expulsion after failing the midterm English threshold; granted an individual make-up exam 62 64 65
First Appearance	Chapter 2

Appearance

Sudo is a tall, red-haired boy whose impatient manner and delinquent-like appearance make him intimidating to classmates. 2 53

• Red hair. 2 53
• Strong, athletic physique. 7 8
• Often reacts visibly when angered, clenching his fists or raising his voice. 47 51

Personality

Sudo is proud, blunt, and easily provoked. He initially dismisses class introductions and repeatedly resists compulsory study sessions, particularly when Horikita criticizes his intelligence or basketball ambitions. 2 47 48

Despite his temper, he is not portrayed as malicious. Sakuya assesses him as loyal and fundamentally good-hearted, but lacking emotional control. 49 His fear of losing basketball motivates him to accept help, study with Hirata, and commit to improving after learning that his make-up exam requires only four additional points. 50 51 65

Abilities & Skills

Athletic Ability

Sudo is Class 1-D's overall physical-fitness-test champion and one of its most valuable physical assets. 8 49

• Ran the fifty-meter dash in 6.14 seconds, the fastest recorded result in his class during the test. 7
• Recorded 82.4 kg in grip strength, which the PE teacher described as exceptional for his age. 8
• Won Class 1-D's overall physical-fitness test ranking. 8
• His explosive power and physique are considered highly useful for future physical special exams. 49
• His temper can undermine his value; Class 1-C repeatedly provokes him toward actions that could incur disciplinary penalties. 51 52

Basketball

Basketball is Sudo's central ambition and the main reason he refuses to accept expulsion.

• He is a reserve member of the Basketball Club and trains intensely in hopes of becoming a regular player. 47 53
• He aspires to become a professional basketball player. 50 63
• Initially treats club practice as more important than after-school tutoring. 47 50
• Accepts that expulsion would end both his club prospects and his path toward professional basketball. 50 63

Academic Improvement

Sudo begins with poor study habits but gradually shows willingness to seek help when his enrollment is threatened.

• He struggles heavily with mathematics and initially refuses to focus during the class study group. 47 48
• He asks Hirata for help with English during the library sessions rather than approaching Horikita. 51
• He scored around 60 in four midterm subjects but only 39 in English, below Class 1-D's 43-point passing threshold. 62 65
• His individual make-up exam covers the same English scope as the midterm; passing requires a score of at least 43. 65
• He agrees to study for seven days with Hirata and Yukimura after learning he needs only four more points. 65

Relationships

• Tatsuya Sakuya — Class committee secretary and creditor. Sakuya recognizes Sudo's athletic value, helps secure his make-up exam, and binds him to a one-million-Private-Point repayment contract. 49 63 64
• Horikita Suzune — Classmate and study coordinator. Her harsh, dismissive teaching style causes repeated clashes with Sudo, though she later attempts to persuade him more patiently. 47 48 50
• Hirata Yousuke — Tutor and mediator. Hirata helps Sudo study English, restrains him from fighting Class 1-C, and is named among the classmates who will help him prepare for the make-up exam. 51 52 65
• Kushida Kikyou — Recruiter for the study group. She helps arrange the meeting with Sudo and turns Sakuya's proposed date wager into a contest that convinces him to study. 50
• Ike Kanji and Yamauchi Haruki — Fellow underperforming students. They leave the original study group alongside Sudo and later compete with him for the highest score in Kushida's date wager. 48 50
• Ryuuen Kakeru — Indirect adversary. Ryuuen learns of Sudo's temper, athletic talent, and Basketball Club ambitions and appears to target those weaknesses. 53
• Yamawaki — Class 1-C provocateur. His insults nearly push Sudo into a fight in the library. 51 52
• Kouenji Rokusuke — Classmate who openly condemns Sudo's failure as “unsightly,” arguing that access to the exam questions left him no excuse. 62

Story Role / Major Arcs

Early Class 1-D

Sudo rejects the class self-introduction exercise, establishing his impatience with social formalities. 2 He quickly gains recognition through his physical ability, posting the class's best fifty-meter-dash result and ultimately becoming its overall fitness-test champion. 7 8

Midterm Study Crisis

When Horikita launches mandatory after-school tutoring, Sudo prioritizes Basketball Club practice and reacts angrily to her threat of expulsion. 47 Horikita's blunt criticism leads him to storm out of the Palette Café study session, followed by Ike and Yamauchi. 48

Sakuya considers Sudo too valuable to abandon because of his athletic potential. 49 After Kushida helps convene the three boys, Sudo agrees to join the library study sessions when Kushida offers to date whichever of them earns the highest score. 50 He subsequently asks Hirata for English help, showing a meaningful—if limited—change in attitude. 51

Class 1-C Provocation

Class 1-C exploits Sudo's short temper during the library sessions. He nearly resorts to violence against Yamawaki but is restrained by Hirata and later calmed by Sakuya. 51 Ryuuen then receives intelligence identifying Sudo's temper, athletic ability, and Basketball Club ambitions as exploitable vulnerabilities. 53

Midterm Failure and Make-Up Exam

Sudo neglects English preparation before the midterm, having focused on other subjects and fallen asleep instead of memorizing the material. 61 His English score of 39 falls four points below the required threshold, placing him under immediate threat of expulsion. 62

Desperate to remain enrolled and preserve his basketball future, Sudo signs Sakuya's contract for a one-million-point loan, repayable in monthly installments of at least 20,000 points with 10% annual interest. 63 64 Sakuya, Horikita, and Ayanokouji instead pool 200,000 Private Points to purchase Sudo an individual make-up exam. 64 Learning that he needs only four more English points transforms his despair into determination to study. 65

Notable Quotes

“Have you ever seen Advanced Nurturing High School at four in the morning?” 50

“I don't want to get expelled! If I get kicked out, I'll never be able to play basketball again in my life!!” 63