Sae Chabashira

Biodata

Feature	Information
Name	Sae Chabashira (茶柱佐枝)
Alias(es)	Little Sae
Species/Race	Human
Gender	Female
Affiliation	Class D; Advanced Nurturing High School
Occupation/Role	Class D homeroom teacher; History Department teacher
Status	Active 50
First Appearance	Chapter 1

Background / History

Chabashira is assigned as Class D's sole homeroom teacher for the students' full three-year term at the school. She also teaches History. Her first impression of the class is deeply pessimistic; after seeing Xu Nuo's flamboyant self-introduction, she privately concludes that Class D remains a “scrap heap.” 1 2

Her assessment of Xu changes when he asks about an Anonymous Account almost immediately after enrollment. Reviewing his supposedly mediocre file, she concludes that his Class D profile is likely fabricated and begins to hope he may be the “ace” capable of leading the class to Class A. She provides an Anonymous Account in exchange for a 500,000-Point loan and tests his understanding of the school’s point system. 8 10 11

When Horikita Suzune questions her placement, Chabashira explains that Class D contains students judged worst by the school’s comprehensive evaluation. She directs Horikita to seek Xu’s advice, having inferred that he understands the school more deeply than he appears to. 18

Chabashira learns that Xu’s Anonymous Account contains 470 million Private Points. Though she initially considers concealing the matter, including the loss of her own Points, she reports it because the scale makes concealment impossible and prepares countermeasures for Xu. 25

After Xu’s meeting with Chairman Sakayanagi Narimori, Chabashira waits anxiously outside the office while smoking. Her concern becomes visible despite her usual detachment, and Xu’s casual interference with her smoking unsettles her. 26

When Sudo Ken faces expulsion, Chabashira attempts to recruit Xu’s help by appealing to Class D’s future, provoking his pride, and considering harsher pressure. His refusal forces her to confront how dependent her long-held Class A ambition has become on his cooperation. She ultimately agrees to fulfill Xu’s terms if he remains and leads Class D to Class A. 47 48 49

Afterward, Chabashira treats the concession as a “down payment” toward the possibility of reaching Class A. She reassesses Xu as exceptionally dangerous and psychologically resilient, while also revisiting Ayanokoji Kiyotaka as a possible hidden asset for Class D. 50

Appearance

Chabashira is a mature-looking woman described as approximately twenty-five or twenty-six years old, with refined features and a composed professional bearing. 1 26

• Long, straight black hair, usually tied in a neat high ponytail. 1
• Brownish-gold or amber-gold eyes. 8 26
• Typically wears a professional teacher’s office suit. 1
• Often wears black stockings and high heels. 1 10
• Her usually immaculate presentation becomes visibly disheveled after the events surrounding Xu’s demand for sincerity. 50

Personality

Chabashira presents herself as cold, stern, and emotionally detached. She speaks quickly and bluntly, gives students little room to react, and can continue teaching through Class D’s disorder with near-total outward indifference. 1 9

Beneath that professionalism, she is highly observant and calculating. She recognizes inconsistencies in Xu’s academic profile, tests him through the Anonymous Account price, and carefully probes what he knows about the school’s system. 10 11

Her defining motivation is her decade-long obsession with bringing Class D to Class A. This ambition makes her pragmatic and willing to discard Sudo as a pawn when necessary, but it also leaves her vulnerable when Xu refuses conventional incentives and exploits her desperation. 47 48

Abilities & Skills

Educational and Institutional Expertise

Chabashira is an experienced Class D homeroom teacher and History instructor with detailed knowledge of the school’s systems.

• Explains that class assignments result from a comprehensive evaluation and that Class D houses the lowest-rated students. 18
• Facilitates access to an Anonymous Account and formalizes Xu’s 500,000-Point loan through a contract. 10 11
• Understands the significance of the school’s initial 100,000-Point distribution and probes whether Xu has deciphered its purpose. 11
• Maintains a History lesson despite widespread sleeping, gaming, and gossip in Class D. 9

Strategic Assessment

Chabashira evaluates people as potential assets and adjusts her approach when her plans fail.

• Identifies Xu’s file as likely false after he demonstrates knowledge unavailable to ordinary first-year students. 10
• Recognizes Sudo’s athletic ability as valuable for future special exams. 47
• Attempts persuasion through appeals to pride, resentment, and Class A advancement. 47 48
• Reconsiders Ayanokoji as a possible trump card after Xu draws attention to him. 50
• Her attempts to manipulate Xu repeatedly fail because he has no interest in Class D’s collective advancement. 47 48

Authority and Discipline

Chabashira can impose order through the threat of school consequences.

• Silences an escalating Class D argument by threatening expulsion. 23
• Retains enough authority to summon Xu privately and direct students handling teaching materials. 8 47

Notable Items

• Lesson plans — Carried during class and while moving through the school. 8 17
• Student files — Used to examine Xu’s official evaluation and identify discrepancies. 10
• Cigarettes — A stress-relief habit she attempts to resume during tense moments. 18 26 47

Relationships

• Xu Nuo — Her student and perceived “ace” for Class D. She provides his Anonymous Account, becomes involved in the fallout from his Point theft, and eventually agrees to his conditions in exchange for his help toward Class A. 8 10 11 25 47 48
• Horikita Suzune — Her Class D student. Chabashira reveals the truth of Class D’s evaluation to Suzune and advises her to seek Xu’s guidance. 18
• Sudo Ken — A Class D student Chabashira considers an important athletic asset, prompting her attempt to persuade Xu to prevent Sudo’s expulsion. 47
• Ayanokoji Kiyotaka — A low-profile Class D student whom Chabashira later re-evaluates as a potential trump card. 50
• Sakayanagi Narimori — The school chairman. Chabashira escorts Xu to his office and waits outside during their private discussion. 25 26
• Chie Hoshinomiya — Class B’s homeroom teacher, described as Chabashira’s arch-rival and “best friend.” 49
• Class D — Her homeroom class and the focus of her ambition to reach Class A. 1 48

Story Role / Major Arcs

Class D Homeroom Teacher

Chabashira introduces herself as Class D’s long-term homeroom teacher and establishes her cold, strict public persona. She initially sees little promise in the class. 1 2

Anonymous Account Investigation

Xu’s knowledge of Anonymous Accounts convinces Chabashira that he is concealing his real capabilities. She grants him access through a 500,000-Point loan while testing his understanding of the school’s hidden rules. 8 10 11

Class D’s Structural Reality

She reveals Class D’s status as the school’s repository for its lowest-rated students, directly intensifying Horikita Suzune’s desire to rise to Class A. 18

Private Points Incident

After discovering the enormous balance in Xu’s Anonymous Account, Chabashira weighs protecting him against reporting the incident. She chooses to report it once concealment becomes untenable, then anxiously awaits the result of his meeting with the chairman. 25 26

Pursuit of Class A

Sudo’s impending expulsion drives Chabashira to seek Xu’s help. Her failure to sway him exposes the depth of her fixation on Class A and leads her to make increasingly personal concessions for his cooperation. 47 48 49 50

Notable Quotes

“It is a recycling bin for defective products.” 18

“As long as you stay. And lead Class D to rise to Class A. Then I will... do as you wish.” 48

Trivia

• Chabashira is twenty-six years old. 26
• Xu transfers 50,000 Private Points to her after receiving his 80 million-Point reward from the chairman. 32
• She stops herself from taking out a cigarette during her conversation with Xu after recalling his earlier objection to her smoking. 47