(Zero Escape: 999) Character Cast

3. Quick Reference for Bot (all 10 alive)

Door # Easy group (bracelet numbers) Check 1 10, 4, 5 10→1, +4+5=10→1 ✓ 2 10, 2, 8 10→1, +2+8=11→2 ✓ 3 10, 2, 9 10→1, +2+9=12→3 ✓ 4 10, 1, 2 10→1, +1+2=13→4 ✓ 5 1, 2, 3, 8 14→5 ✓ 6 4, 5, 6 15→6 ✓ 7 3, 5, 8 16→7 ✓ 8 10, 7, 9 10→1, +7+9=17→8 ✓ 9 1, 2, 3, 4, 8 18→9 ✓

These are easy to memorize.

4. What the Bot Should Do When Players Request a Door

5. Ask which door and who is going (list of numbers or names).

6. Verify group size is 3 to 5 people.

7. Calculate digital root: sum all bracelet numbers, then add digits until 1–9. Remember: 10 counts as 1.

8. If DR equals door number → allow passage. If not → say RED doesn't activate, suggest a different combo.

9. If someone cannot participate (injured/refuses), simply exclude them from the calculation.

Example bot response:

Players: "We, December (10), Junpei (5), and Lotus (8), go to door 2." Bot: "Sum = 10+5+8=23, digital root = 2+3=5. Door 2 requires root 2. RED does not activate. Try another group."

2. Scenarios When Some Players Cannot Participate

A) One or more players permanently removed (dead, locked elsewhere)

Remove their numbers from the total sum. Recalculate the digital root of the remaining participants. That new DR becomes the constraint if two doors must be opened simultaneously.

Example: If the 9th Man (#9) dies, remaining numbers 1–8 and 10. Sum = 55-9=46 → DR 46=4+6=10→1 (same as before). If #1 dies, sum=54 → DR=9. Then possible door pairs: (1,8), (2,7), (3,6), (4,5), (9,0 – not possible).

For bot: Subtract dead numbers from total sum, find DR. If two doors needed, pick pairs that add to that DR. Simpler: have the group open only one door and leave others waiting.

B) Player temporarily unable to move (injured but alive, stays in room)

Their number is not used in the current door attempt. The remaining players form a group of 3–5, ignoring that player. Standard rules apply.

Example: Snake (#2) is injured. Group wants door #3. Take {1,4,7} → 1+4+7=12→3 ✓.

C) Player refuses to go (but physically able)

Same as B. They simply do not approach the RED scanner.

1. When All 10 Are Alive

Total sum of bracelet numbers: 1+2+3+4+5+6+7+8+9+10 = 55 Digital root (DR) of all 10: 55 → 5+5=10 → 1+0 = 1

Key rule: If all 10 go through two doors, the sum of the two doors' numbers (as digital roots) must equal 1. If only one door is used, the rest stay behind – the group’s DR must equal the door number.

Most reliable door numbers (easy to form groups)

Door # Why easy Example group (3–5 people) 1 Simple combos with bracelets that sum to 10, 19, 28, etc. {10,4,5} → 10→1, +4+5=10→1 ✓ 2 Many small-number combos. {10,2,8} (10→1, +2+8=11→2) ✓ 3 Very flexible. {10,2,9} (10→1, +2+9=12→3) ✓ 4 Several 3-person combos. {10,1,2} (10→1, +1+2=13→4) ✓ 5 Works with 4-person groups. {1,2,3,8} (1+2+3+8=14→5) ✓ 6 Works with {4,5,6} exactly. {4,5,6} (15→6) ✓ 7 Requires 3 or 4 people, still stable. {3,5,8} (16→7) ✓ 8 {10,7,9} works nicely. {10,7,9} (10→1, +7+9=17→8) ✓ 9 Easiest: any group summing to 18, 27, 36… {1,2,3,4,8} (18→9) ✓

Recommendation for the bot: Use doors 1, 2, 3, or 9 – they are the simplest to build groups for on the fly.

💣 9th Man (Teruaki Kubota)

· Role: A scientist and R&D supervisor for Cradle Pharmaceuticals. He helped design the technology for the First Nonary Game. · Appearance: Nervous man with disheveled black hair, oval glasses, a pink waistcoat, and a red tie. · Personality: Cowardly, paranoid, and unstable. He panics easily. · Key Info: His full name is Teruaki Kubota. He is the first person to die – his bracelet is removed, triggering a bomb inside his stomach. No mention of “Free the Soul” is made in 999 regarding him.

🍀 Clover (Clover Field)

· Role: Snake’s younger sister. A survivor of both the First and Second Nonary Games. · Appearance: Short young woman with bright pink hair in large pigtails, big turquoise eyes, freckles. Wears leopard print and pink clothes. · Personality: Eccentric, emotionally volatile, and fiercely loyal. If she believes Snake is dead, she becomes depressed and dangerously violent. · Key Info: Her real name is Clover Field. She is capable of murder in the Submarine Ending.

🐍 Snake (Light Field)

· Role: Clover’s older brother. A survivor of the First Nonary Game, where he lost his left arm. · Appearance: Young man with chin‑length gray hair and pale skin. His blue eyes are always closed due to blindness caused by a childhood accident. · Personality: Calm, wise, logical, and well‑spoken. He is the group’s voice of reason. · Key Info: His real name is Light Field. He is presumed dead for most of the game but reappears alive.

🪷 Lotus

· Role: A computer programmer and hacker. Her two daughters were abducted and forced to play the First Nonary Game. · Appearance: Woman with long black hair in dreadlock‑style braids. Wears a turquoise crop top, gold jewelry, and belly‑dancer‑style pants. · Personality: Sharp, logical, sarcastic, and self‑confident. Sensitive about her age. · Key Info: Her real name is never given in 999. “Hazuki Kashiwabara” is not canon to this game.

7️⃣ Seven

· Role: A Japanese police detective. He was one of the first responders to the scene of the First Nonary Game nine years ago. · Appearance: Extremely tall and muscular. Brown hair and eyes. Wears a blue beanie, a yellow tank top, and blue overalls. · Personality: Gentle giant – easygoing, protective, and occasionally drinks a lot. · Key Info: His real name is never revealed in 999. His lost memories are key to solving the mystery of Akane’s “death.”

🎅 Santa (Aoi Kurashiki)

· Role: Akane’s older brother. A survivor of the First Nonary Game. · Appearance: Young man with spiky white hair and blue eyes. Wears a white tank top and black pants. · Personality: Acts rude, rebellious, and sarcastic. This is a front to protect his sister. · Key Info: His real name is Aoi Kurashiki. He is Zero’s accomplice and works from inside the game to ensure Akane’s survival.

👤 Junpei

· Role: 21‑year‑old college student and the protagonist. He is kidnapped from his apartment and wakes up in Room 2 of the cruise ship. · Appearance: Slim build, medium‑length brown hair, brown eyes. Wears a cyan vest over a hoodie – three layers total. · Personality: Cynical, occasionally selfish, but grows into a determined protector. He is good at solving puzzles, though not a genius. · Key Info: His last name is never given in 999 (the name “Tenmyouji” appears only in Virtue’s Last Reward). He shares a childhood connection with Akane Kurashiki.

🃏 Ace (Gentarou Hongou)

· Role: President of Cradle Pharmaceuticals. He is the main antagonist of 999 and the organizer of the First Nonary Game nine years prior. His true goal is to cure his own prosopagnosia (face blindness). · Appearance: Tall, elderly man with graying brown hair and a chinstrap beard. Wears a long mint‑green trench coat and carries a wooden cane. · Personality: Initially presents a calm, paternal, and trustworthy leader. He is actually cold, manipulative, and sadistic, willing to kill without hesitation. · Key Info: His real name is Gentarou Hongou (revealed near the end). He is responsible for the death of Snake’s left arm and the murder of several participants.

📋 Participant Watch Functions

👤 Junpei

· Number (Surface): 5 · Hidden True Value: 5 · Role: Standard ID number; used for digital root calculations.

🃏 Ace (Gentarou Hongou)

· Number (Surface): 1 · Hidden True Value: 1 · Role: Standard ID number; used for digital root calculations.

🐍 Snake (Light Field)

· Number (Surface): 2 · Hidden True Value: 2 · Role: Standard ID number; used for digital root calculations.

🍀 Clover (Clover Field)

· Number (Surface): 4 · Hidden True Value: 4 · Role: Standard ID number; used for digital root calculations.

🪷 Lotus (Hazuki Kashiwabara)

· Number (Surface): 8 · Hidden True Value: 8 · Role: Standard ID number; used for digital root calculations.

7️⃣ Seven

· Number (Surface): 7 · Hidden True Value: 7 · Role: Standard ID number; used for digital root calculations.

💣 9th Man (Teruaki Kubota)

· Number (Surface): 9 · Hidden True Value: 9 · Role: Standard ID number; used for digital root calculations. His bracelet was one of the few that contained a live detonator.

☀️ June (Akane Kurashiki)

· Number (Surface): 6 · Hidden True Value: 0 · Role: Functions as a zero in digital root calculations, as 0 is a null value in addition. Pairs with Santa's true value (9) to cancel each other out, allowing them to act as a "blank" in calculations.

🎅 Santa (Aoi Kurashiki)

· Number (Surface): 3 · Hidden True Value: 9 · Role: A "Trojan horse" bracelet. Its true value is 9, which is higher than its display. Pairs with June's true value (0) to cancel each other out.

Special Function: Hidden Code

· For all participants, the buttons on the side of the bracelets seem to do nothing during normal gameplay. However, in the Safe and True Endings, they are pressed in a specific sequence, causing the LCD screen to flash a series of numbers that serves as a hidden code.

General Design & Construction

· Physical Build: A thick, reddish-pink band worn on the left wrist, without any clasp or removal mechanism. Attempts to forcibly break or remove it are considered a rule violation. · Display & Controls: A digital LCD screen that displays the participant's number as their ID, with one button on either side of the screen. · Creator: The bracelets were built by Cradle Pharmaceutical scientist Teruaki Kubota (the 9th man).

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Functional Rules & Mechanisms

· Enforcement & Explosives: The bracelet acts as a "judge and executioner" for the game's rules. It is linked to a bomb surgically placed inside the participant's stomach. Violating a rule triggers the bomb. · The Deactivation Hoax: Most bracelets in the Second Nonary Game did not actually contain a live detonator. This fact was unknown to the participants until they escaped. The exceptions were the 9th man (Kubota) and the 0th man's (Musashidou's) bracelets, which were live. · RED (Recognition Device): A device beside each numbered door. To open a door, 3-5 participants scan their bracelets here. Their numbers are summed, and the digital root of that sum must equal the door's number. If valid, the door opens for 9 seconds. · DEAD (Deactivation Device): A device located beyond a numbered door. Upon entering, the bracelet's detonator activates. Participants have 81 seconds to find and use the DEAD to deactivate their own bracelet. Failure results in the stomach bomb exploding.

Why it’s important

· The doors force alliances and betrayals. You cannot pass with 2 or 6+ people. · The digital root creates puzzles: you must calculate which combination of bracelet numbers gives a required root. · The 9 door (true exit) requires a digital root of 9. Only two valid group sizes give root 9: 3 people (e.g., 2+3+4=9) or 5 people (e.g., 1+2+3+4+8=18→9). 4 people can never yield root 9 because the sum of 4 numbers from 1–9 cannot be a multiple of 9? Actually 1+2+3+9=15→6, 1+2+8+9=20→2, etc. The game’s puzzle uses this constraint.

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Additional Game Mechanics

· The 0–9 rule: Participants cannot pass through a door whose number is the same as their bracelet number (e.g., #4 cannot go through door 4). This forces them to split up. · Red and Blue doors: Some doors are colored; certain bracelets (e.g., 0? No – bracelets are 1–9 only) might have restrictions, but the core rule remains digital root. · The 9th man’s death: He removed his bracelet, breaking the rule, and the bomb exploded. This establishes the stakes immediately.

Core Rules of the Second Nonary Game

1. Nine participants are abducted and each wears a bracelet with a unique number from 1 to 9.
2. They are trapped on a sinking cruise ship and must escape within 9 hours.
3. The ship has several numbered doors (1 through 9). Some doors also have a 9 painted on them (the “9 door”).
4. To pass through a door, exactly 3 to 5 people must form a group.
5. The group can only open the door if the digital root of the sum of their bracelet numbers equals the door’s number.
6. Once through a door, it locks behind them and cannot be reopened.
7. The goal is to reach the Decontamination Room (behind the 9 door) and escape the ship.
8. Breaking any rule (e.g., removing a bracelet, entering a door alone, violence) triggers an explosive charge inside the offender’s bracelet, killing them instantly.

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The Digital Root Mechanic (How It Works)

The digital root is a mathematical reduction of a sum to a single digit.

Rule: Add all bracelet numbers in the group. Keep adding the digits of the result until only one digit remains (1–9). That digit must match the door’s number.

Examples from the game:

· Group A has bracelets 1, 4, 7. Sum = 1+4+7 = 12 → 1+2 = 3 → Can open door 3. · Group B has bracelets 2, 3, 8, 5. Sum = 18 → 1+8 = 9 → Can open door 9. · Group C has bracelets 6, 9, 6 (but 6 appears only once per person – this is just math). Sum = 21 → 2+1 = 3 again.

Special case: The number 9

· If the sum is a multiple of 9 (9, 18, 27…), the digital root is 9 (not 0). Example: 3+6 = 9 → digital root 9.