Chie Hoshinomiya

Biodata

Feature	Details
Name	Chie Hoshinomiya (星之宫知惠)
Alias(es)	Hoshinomiya-sensei
Gender	Female
Affiliation	Tokyo Metropolitan Advanced Nurturing High School; Class 1-B
Occupation/Role	Class 1-B teacher and homeroom teacher
First Appearance	Chapter 3

Background

Chie Hoshinomiya becomes Class 1-B's homeroom teacher at the start of the students' first year. During her first homeroom session, she introduces the school's S System and distributes the school-issued phones that function as both student IDs and payment tools. She also immediately notices An Xiao's attempt to ask a question, revealing that she pays close attention to her students 3 4.

When An Xiao questions the purpose of class points and the class-ranking system, Hoshinomiya evades a direct answer while showing clear interest in his perceptiveness. She has access to his admissions evaluation, including assessments of his academic ability, intelligence, judgment, physical ability, teamwork, and personality 4.

Appearance

Hoshinomiya is introduced as a smiling woman in a pink short-sleeved shirt, carrying a blackboard into Class 1-B's classroom 3.

• Often wears a bright, teasing smile.
• Uses deliberately cute expressions and poses when addressing students.
• Is regarded by An Xiao as notably attractive 3 9.

Personality

Hoshinomiya is highly sociable and quickly builds rapport with students through playful self-confidence, openly asking whether they are happy to have such a “cute teacher” 3. She enjoys provoking embarrassed reactions—especially from An Xiao—and treats his discomfort as entertainment 9.

Her casual behavior sharply conflicts with conventional teacherly professionalism. Her desk is cluttered with cola, snacks, and a tablet playing variety shows, while lesson plans are left aside; Sae Chabashira openly criticizes her lack of decorum 9. She also drinks heavily enough to arrive at class hungover 37.

Behind her cheerful manner, Hoshinomiya is calculating, evasive, and intensely competitive. She withholds sensitive information, checks that conversations cannot be recorded, and recruits An Xiao into a covert arrangement intended to damage Class D's prospects—primarily to defeat Chabashira 9 10.

Knowledge & Methods

School-System Knowledge

Hoshinomiya possesses detailed knowledge of the school's internal structure and its point-based system.

• Confirms that points can be used for class transfers, avoiding expulsion, and even a degree of rule-bending, depending on how they are used 11.
• Advises An Xiao to reconsider the school's placement of the four classes, calling that knowledge useful in the early stages 11.
• Refuses to reveal the identity of the Class D student she believes could potentially lead that class to Class A 29.
• Cannot authorize An Xiao to skip class despite the broad utility of points, stressing that the school must still publicly function as a school 11.

Student Assessment and Manipulation

Hoshinomiya evaluates students' potential and selectively applies information, pressure, and rewards to direct their behavior.

• Accesses An Xiao's admissions evaluation and becomes increasingly interested in his intelligence and passive-but-helpful disposition 4 10.
• Ensures An Xiao's phone cannot record their private discussion before revealing additional school information 9.
• Uses An Xiao's curiosity about the school and his reluctance to cause trouble to push him into negotiating with her 9 10.
• Offers a recurring payment of 20,000 points per month, plus bonuses for major successes against Class D 10.

Relationships

• An Xiao — Her Class 1-B student and covert collaborator. She repeatedly teases him, monitors his potential, gives him information about the school, and pays him to undermine Class D during exams and events 4 9 10 11.
• Sae Chabashira — Fellow teacher, former acquaintance, and rival. Hoshinomiya's effort to prevent Class D from reaching Class A is driven largely by her desire to defeat Chabashira 9 10 22 38.
• Honami Ichinose — A Class 1-B student whom Hoshinomiya considers easier to control because of her known past, though she considers An Xiao the more valuable student in terms of ability and personality 10.
• Class 1-B — Her homeroom class. She encourages its students to perform well on exams and strive to surpass Class A 3 23.

Story Role / Major Arcs

Class 1-B Orientation

Hoshinomiya introduces Class 1-B to the S System and the school's point-based student life. Her evasive response to An Xiao's questions about class points contributes to his suspicion that the school hides a competitive class-ranking system 3 4 5.

Recruitment of An Xiao

After verifying that An Xiao cannot record their conversation, Hoshinomiya offers him further information about the school. She then recruits him to obstruct Class D's advancement and, if possible, help Class B rise to Class A; he accepts only insofar as he will focus on exams and events rather than indiscriminately harassing Class D 9 10.

Rule Briefing

After listening to An Xiao's recording of a third-year student, Hoshinomiya confirms that most of the gathered information is accurate. She adds that points are effectively omnipotent within the school and hints that each class's stated position deserves reconsideration 11.

Midterm Period

Hoshinomiya maintains a cheerful, almost excessive optimism as Class B prepares for exams, contrasting with Chabashira's fury over Class D's performance. She later warns An Xiao that, despite Class D's apparent dysfunction, one of its students may possess the potential to lead it to Class A 22 23 29.

Delayed Point Distribution

When monthly points are delayed, Hoshinomiya gives An Xiao a vague explanation and redirects him toward Chabashira, apparently using the situation to antagonize her rival. She physically prevents An Xiao from entertaining Chabashira's suggestion that he transfer to Class D 38.

Notable Quotes

“Points are omnipotent here, provided you know how to use them.”
— Chie Hoshinomiya 11

“During the time you're helping me out, I'll transfer 20,000 points into your account every month.”
— Chie Hoshinomiya 10

“How about you just marry me, Xiao An? I can't live without you anymore.”
— Chie Hoshinomiya, while hungover 37