154

Biodata

Background / History

154 says that he was formerly an examinee and became an invigilator by passing the examinations with excellent results. By his encounter with You Huo, he has served as an invigilator for three years and followed Qin Jiu alongside 922 for almost that long 7 8 10.

He recalls encountering one “toothpaste question” during his examinations—a question that reveals information incrementally, leaving candidates with almost no initial opportunity to score. According to him, the first collection in such examinations usually costs a companion’s life; he remembers being fortunate enough not to be selected 8.

Early in his invigilator career, he learned that Qin Jiu had lost memories following an Examination System accident. His own unpleasant experience raising the subject leads him to repeatedly stop 922 from asking about their superior’s past 20.

Appearance

• Height: Noticeably shorter than You Huo, who is described as approximately 185 centimetres tall 18.
• Expression: Frequently maintains a rigid, expressionless face likened to a coffin 7 8.
• Accessory: Wears a plain band on his index finger that conceals a red violation-warning light 10.

Personality

154 adopts a stern, businesslike manner around examinees. When Old Yu protests that the candidates were never explicitly told which writing implements were permitted, he answers that every rule has clues and that their ignorance is not the invigilators’ concern. He becomes even more formal when speaking before an examinee in Qin Jiu’s office 5 9.

His outward composure conceals frequent irritation and sarcastic thoughts about his colleagues. He complains about Qin Jiu’s misleading paperwork, calls 922 an idiot, and resents being caught between his superior’s provocations and his colleague’s interruptions. Nevertheless, he is wary of openly challenging Qin Jiu and quickly withdraws complaints when directly confronted 7 8 17.

He is not indifferent to the system’s dangers. His voice becomes tense when discussing solitary confinement, and he turns pale when You Huo asks what happens to invigilators who break the rules 6 11.

Abilities & Skills

Examination Regulations

154 supplies procedural information when Qin Jiu decides how to handle violations.

• Identifies solitary confinement as the prescribed punishment for a second violation and warns that adding punishment is itself against the rules 9.
• Explains that three consecutive violations in one examination make an examinee a special subject requiring continuous on-site supervision 11 18.
• Announces the accompanying penalty of losing the right to choose on one occasion 18.
• Cannot freely explain the examination’s nature: his warning ring activates when he approaches a prohibited topic 10.

Investigation and Confinement Duties

• Escorts examinees to punishment rooms and unlocks them after confinement 6 7.
• Examines Hunter A’s corpse and the broken goblet while investigating the death of the examination’s central figure 17.
• Questions You Huo to confirm his involvement, despite already knowing the broad circumstances 18.

Equipment / Items

• Violation-alert ring — A plain index-finger band that emits a warning sound and red light. 154 turns it to conceal the light after it interrupts his explanation to You Huo 10.
• Confinement-room key — Used to open You Huo’s room after his three-hour punishment 7.
• Written notices — Slips containing violation reports and punishment instructions, which he reads to the examinees 5 17 18.

Relationships

• Qin Jiu / Invigilator 001 — Superior, addressed as “Boss.” 154 follows his orders but privately criticizes his teasing and unpredictable suggestions. He also cautions 922 against questioning Qin Jiu about his missing memories 7 10 20.
• Invigilator 922 — Longtime colleague and frequent source of exasperation. Their exchanges include insults, evasions of unpleasant duties, and 922 secretly wiping his fingers on 154’s coat after handling Hunter A’s corpse 7 8 17 20.
• You Huo — An examinee whose repeated violations disrupt his work. You Huo overpowers and binds him inside a confinement room; afterward, 154 is particularly relieved that 922 did not witness the humiliation 8.
• Old Yu — Challenges 154 over the fairness of punishing candidates for rules they were not explicitly told. 154 rejects the objection and proceeds with the violation notice 5.

Story Role / Major Arcs

Snowy Mountain Physics Examination

• Initial enforcement: Arrives with 001 and 922 after a stationery violation. Qin Jiu identifies You Huo as a culprit despite having written “young girl” on the notice, leaving 154 bewildered 5.
• Confinement reversal: Finds You Huo asleep in an unchanged punishment room after three hours. You Huo subsequently ties him to a chair and gags him with a written insult aimed at Qin Jiu’s misidentification; Qin Jiu discovers and releases him 7 8.
• Second punishment: Escorts You Huo to clean the bloodied confinement room. During their conversation, he describes invigilator recruitment but is stopped by his ring before explaining what the examination actually is 10 11.
• Hunter A investigation: Helps investigate Hunter A’s death and formally announces You Huo’s third-violation penalties. He remains at the cabin during the resulting on-site supervision 17 18 20.
• Early completion: Reminds the candidates that 48 hours is the normal completion time. Privately, he calculates that without You Huo’s punishment periods, the examination could have been finished in under six hours 25.

Notable Quotes

“There are clues for every rule.” 5

“As an invigilator, getting tied up by an examinee in a confinement room—”
“It is. Luckily, 922 didn't see it, or he'd laugh about it for two years.”

—154 answering Qin Jiu’s question about whether the incident was embarrassing 8