Template:Shared Draft 168

Unsorted Notes
- is a character introduced in Souyaku Toaru Majutsu no Index.

Operation Handcuffs Arc
Adding GT3 Chronology header TSP

Ch2 Magazines:
 * Brands/News Outlets for the subject link's categories, following the example of other magazines (not enough for an article page, redirecting to Chapter 2 Trivia like Lunar Zit-kun)
 * Weekly Mind's Eye ( 週刊心眼（しゅうかんしんがん） )
 * Emanating Light (光明)
 * CRs?

Ch4 - Hula Hoop,
 * Quote candidate, Anna: “The freedom of magic wins out over the order of science. No matter how carefully you build everything up, I will still tear it down, overwrite it, and crush it.”

Cellulose nanofiber: ? (Ch4Pt11)
 * Carbon material, gather attention for use in making wires and bulletproof materials
 * Can make delicate wires even thinner than cranial nerves.
 * Used for Ladybird, brain and ability
 * Unlike biological brain, leave in active state causes automatically replicate, try to forcibly fold selves up for space if run out of room in skull.

bC-96/R:
 * Medicine to deal with Body Crystal side effects, obtained from Aoumi Karei (Pet Breeder)(Pr, 2-7)
 * “The temperature and humidity should be fine if you keep it in the fridge, but watch out for electricity leakage. Electrolysis can easily break down the medicine’s components.”(Pr, 2-7)
 * Destroyed by high-votage current from stun gun(2-7)

NB20:(1-1)
 * NB20 close-range arresting gun.
 * Net rifle recalled for causing many accidents
 * Shoot kid with handgun - big deal, kill with weight used to spread out net - call accident
 * Saw in back seat, think serious - slaughter

School Boy (学園太郎) (Alias): Voice on the Phone
 * Found and declared dead by Anti-Skill at 4:10PM (1-1)
 * Fall from building, squash parked car to half height, all windows shatter
 * Can't get up, turn head to Hamazura, not open one eye due to blood from head wound, weak/cynical smile
 * Young man, older than Hamazura, thick coat, fancy slacks, unclear what wear beneath cloth, practical sneakers on feet clash with classical outfit, also wear synthetic fabric sling bag over coat, mismatch look - make look like skipping town
 * Not look like it, boss over phone, no exceptions, no strength left to nod/shake head
 * Last words, charm, lives outside city, return to little sister
 * No longer listening, especially large convulsion, stop moving, not even shut eyes, stop blinking and blood ooze from unfocused eyes
 * Bag too small to fit much more than wallet and phone. Narrow alley and look. A few tools inside, passport as ID, smartphone, paper money careless balled up with rubber bands, Shinto shrine's charm (feel out of place), handgun seemingly made out of plastic. Almost all sketchy, power off phone, open passport. School Boy - fake name, one show up on a lot of example documents in AC banks/government offices. No Coin (random or leave)
 * Nobunaga rotating three-line formation
 * Charm
 * Vermillion fabric, shrine name and charm effect stitched in gold - wish fulfillment
 * Handgun, only meant for self-defense, only two spare magazines despite full-auto, hold trigger - last less than 10 seconds, give excuse for AS to kill.

2-4, 3-5 - donuts

Vacuum Piece:
 * Visit SD6 park on Christmas night - people carrying valuables, fun targeting couple think safe once paid for ticket and pass through gate, have group surround and drag to gap in security camera coverage - profitable
 * Team dismembered in one of gaps in security camera coverage he supposedly knew better than anyone, none manage to scream, like hit by paralyzing curse
 * Confirmed it is the place, counterfeiter in tent ahead.
 * Begging, plea, trying to survive, know at mercy of Kihara' whims
 * False footprints meant to take down rival team, respect for counterfeiter's skill - craftsman

2-2:
 * District 6 Amusement Park Main Gate Station
 * Katasu Station
 * Yami Station?
 * Platform doors
 * Commuter express
 * Dream on train full of gorillas
 * Never seem to finish huge station expansion, hear having trouble with rumored Platform 13, dug too far - hit spring, can't stop water, been a swamp down there for years now, dump bodies/guns there, no one ever find, supposedly tons of people who sneak in during night
 * Crowd/rumours
 * Crowd/rumours

Parasite Hardware and accompanying:
 * “When the world grows too convenient, people forget the value of a single byte. People can do anything with just one meg. If you forget that feeling, your creativity dies.” (2-1)

Anti-Skill Aggressor:
 * Anti-Skill Aggressors (アンチスキル＝アグレッサー) are specially chosen Anti-Skill officers, who have been trained to their limit to reproduce the movements of dark side criminals during training, and provided with advanced equipment which is not provided to ordinary Anti-Skill officers and cannot be used openly. Described as a trump card for the Board of Directors, they are an elite group intentionally made to stand on the borderline between justice and the dark side.
 * When operating as Anti-Skill Aggressors, they wear heavy black armor, with the text "Anti-Skill Aggressor" written on their right arms, and use advanced technology not available to regular Anti-Skill. They have weapons capable of slicing through walls and ceilings, and wield giant guns, the recoil of which might break an ordinary person's spine, with ease. Some of their equipment was designed by Kihara Hasuu.
 * One of the advanced technologies available to Anti-Skill Aggressors, used by Rakuoka Houfu, is a type of digestive enzyme which is used to grow muscle fibers. According to Rakuoka, the growth is mainly visual as the total amount of muscle doesn't change and the existing fibers are vertically split, though he is apparently able to move the expanded muscles more precisely and efficiently. He also describes it as the first step towards a similar method with muscle fibers to an existing method of injecting artificial fat into the body to change one's body shape.

Kihara Hasuu:
 * Ch2Pt1 uncertainty: Model protect against injury and cold, also allow for precise movement. - is this referring to the gloves or the phone? (thinking former, yes it is)

Hattori Hanzou: 4-15, good at...

Anti-Skill: Wondering about bullet point or collapsible table for certain items such as the NB20 or the Dangerous Bull under the Equipment sub-sections

Chronology TSPs
Academy City Board of Directors: Pr, Ch2Pt1 (Hasuu/Noukan), BTL3
 * After Anti-Skill sustained critical damage and was unable to continue the operation, Director Valart Signal went to confront Accelerator over the apparent failure of Operation Handcuffs and the damage it had caused to the city, only for Accelerator to confront him on his ties to the dark side.

Kumokawa Seria/Kumokawa Maria/Gekota/Bunny Grey :
 * During the events of Operation Handcuffs on Christmas Day, the Kumokawa sisters (Kumokawa Seria and Kumokawa Maria) swiped Gekota and Bunny Grey costumes as disguises in order to blend in and survive the night in School District 6.
 * During the events of Operation Handcuffs on Christmas Day, the Kumokawa sisters swiped Gekota and Bunny Grey costumes as disguises in order to blend in and survive the night in School District 6.

Beetle 05/Fräulein Kreutune/Fremea Seivelun:
 * While leaving School District 6 with Takitsubo Rikou and Vivana Oniguma, Hamazura Shiage overheard someone trying to convince another that they had seen a blonde girl riding on a white rhino beetle, believing it was a Christmas-only secret in the park, but the other person thought they were lying, having not seen a mascot like that among the park's mascots.
 * After the events of Christmas Day and Operation Handcuffs, Beetle 05 and Fräulein Kreutune were with Fremea Seivelun as she was asleep in an amusement park hotel room filled with character products.
 * After the events of Christmas Day and Operation Handcuffs, Fräulein Kreutune watched as Fremea Seivelun slept while holding onto Beetle 05 in an amusement park hotel room, having been flying on his back earlier that night.

Musujime Awaki: (Post-park)
 * Others in juvenile hall, not even Anti-Skill get to them, pass off as accident in investigation
 * Walk past Hamazura's group, twirl flashlight, high school, exposed midriff, long hair, two tails
 * As long as survive, chance to save, curse Chairman, mess any way to repay old friends, perhaps borrow empty room in morgue used by coroner (3-13)
 * Ep: Crawl out of morgue freezer locker, freezer mode switched off, not have heater inside, shiver - grab electric kettle meant for workers
 * AC might be in trouble, anyone sneak in and mess with bodies like that

Etzali/Xochitl/Tochtli:
 * Xochitl see Anti-Skill, tell to Etzali(1-1)
 * Etzali says not problems thanks to borrowed faces, wouldn't be if stop panicking Xochitl, need to get to hospital to collect Tochtli (1-1)
 * As Operation Handcuffs was getting underway on December 25th, Hamazura Shiage passed Etzali and Xochitl, using their borrowed faces to hide their identities, as they were heading for the hospital to collect Tochtli. The next day, the three Aztecs watched the sunrise, recognizing that the battle between Anti-Skill and the dark side was over, and with the failure they had better prepare for aftershocks caused by the thugs.

Secret Express, Concierge, Idols?, Controller, Flare, back alley ruler, major corporation's lawyer, university headmaster, major entertainment producer, few Kiharas from different fields:
 * During the events surrounding Operation Handcuffs on Christmas Day, X was/were among the people from the Dark Side of Academy City who had found out about the Vanishing Tunnel and gathered in the underground passageway beneath School District 10, only to be killed by Frillsand.

Aleister Crowley
 * After the events, Noukan met Aleister in Shinjuku which located near Academy City's East Gate. Noukan asked him either is going to intervene or watching Academy City collapse. Aleister will leave for Accelerator's decision. They also talked about their true goals about destroying all magics. Noukan urged him to get back work.

Mugino Shizuri/Kinuhata Saiai:
 * Mugino: (Coin)
 * Kinuhata: (Coin)
 * Both: Later that day, by the time Hamazura returned to their apartment, as the first phase of Operation Handcuffs was underway, X had already escaped, leaving behind a note...
 * Mugino: (Note, Aftermath)
 * Kinuhata: (Note, Aftermath)

Navbox Experiment
Ollerus suggestion:
 * Template:British Royal Family Arc
 * Template:Hawaii Invasion Arc

Frillsand
Appearance:
 * Light blue sihouette(2-1)
 * Long blonde twintails(2-1,2-7,3-2,4-3,4-4,Ep)
 * Wear tight dress that shows off figure(2-1) formfitting light blue dress(2-7) skintight dress (3-2) skintight light blue dress(4-3,4-4,Ep)
 * Thin cloth worn loosely around like fairy tale princess's skirt, look like hanging flower(2-1) loose translucent long skirt worn over it(2-7,3-2,4-3,Ep)
 * Look like Western doll,(2-1,4-4,Aft) curvy figure at odds(2-1,Ep) figure - dressup doll attire look weird(2-7,Ep)
 * Look around twenty, figure to match (2-7)

Personality:

Background:
 * Drencher's experiment, Child Errors, no sacrifices

Chronology:
 * 2-1
 * 2-7, 3-2
 * 3-7, 4-1
 * 4-3/4
 * Ep

Abilities:
 * High/low energy
 * Incorporeality - can't touch objects, can pass through objects, objects pass through
 * Ghost nature
 * Machines/electronics malfunctioning
 * Seeing ghost in ghost picture means doom, moreso longer observed - can kill those who have seen her
 * Children used in the experiment, targeting

Ladybird
Classed as an android, Ladybird is a machine comprised of artificial parts which have been built up into the form of a human, created from scratch without a human base. Although her body is modelled on that of a human, the materials and machinery making up the body, Kihara brand products and dark side technology,    grant her capabilities far beyond a normal person.
 * Strength/Speed/Jumping/Endurance/Sensors

Mechanical Capabilities:
 * Ch2Pt1
 * Ch4Pt10
 * Ch4Pt13-17
 * Strength(2-1,2-7,Other?)
 * Jumping(2-7, 4-10/11/?)
 * Sensors(2-7,3-18,4-??)
 * Even in unstable bipedal movement,(4-10) horsepower rival V12 engine at max RPM,(4-10,4-14) top speed increase further as machine efficiency (quadrapedal?)
 * When bipedal, her horsepower can rival a V12 engine at maximum RPMs, with an even higher top speed on all fours.

Being a machine, Ladybird is susceptible to electromagnetic waves.

Clothing:
 * Air resistance, blast resistance secondary concerns, although do a decent job
 * Primary role to help radiate heat to cool off

Equipment - Left Arm, Discharge machine oil:
 * Ladybird wields a 60cm machete known as Left Arm (防御の剣（レフトアーム）). It is made of the artificial element Saintium (セインティウム‎‎‎), which has a metallic bond strength 56 times greater than depleted uranium. As such, the blade can easily stop a warship's armor-piercing artillery and be used to deflect bullets, though it is too heavy for a normal person to wield.
 * Discharge Machine Oil (放電機械油): Belt on thigh, multiple bottles, drink some/dump rest over head as if drinking not enough, thick clear liquid, sheen. Room temperature superconductive fluid which allows Ladybird to safely release all excess energy, also discharge machine oil which reduces frictional wear on joints, sound simple, combine with outer space nuclear reactor and building manned space probe within reach.
 * Smartphone on each shoulder, several skinny tubes in belts around thighs, some rolled-up silicone keyboards, clear bottles full of thick liquid.

Brain Extraction/Ability Usage:
 * Although Ladybird largely fits the definition of an android, being constructed from purely mechanical parts, there is one aspect of her which does not - Ladybird incorporates pieces of brain matter extracted from human bodies. Ladybird is designed to be capable of utilizing esper abilities, being modeled after the structure of a human body and replicating the structure of a human brain (with mechanical processing noted as conceivably being able to 'observe' waves or particles like a human brain does).  Cellulose nanofiber was used to create delicate wires even thinner than cranial nerves, however unlike in a biological brain, leaving them in their active state causes them to automatically replicate and if they run out of room, they will try to forcibly fold themselves up for space, with Hasuu noting the cerebrum's frontal lobe to be particularly troublesome. In order to ensure that the brain remains the desired size, a foreign object needs to be introduced to constantly provide the right amount of damage. Due to the change in the rejection and damage pattern, the esper ability Ladybird changes every time new brain matter is introduced.

Section - Brain:

Although Ladybird largely fits the definition of an android, being constructed from purely mechanical parts, there is one aspect of her which does not - Ladybird incorporates pieces of brain matter extracted from human bodies. Her body's structure is modelled on that of a human and she has a similarly designed brain. (セルロースナノファイバー‎‎‎) was used to create delicate wires even thinner than cranial nerves, however unlike in a biological brain, leaving them in their active state causes them to automatically replicate. If they run out of room, they will try to forcibly fold themselves up for space. The cerebrum's frontal lobe was noted by Hasuu to be particularly troublesome. In order to counteract this, Ladybird must take a foreign object (i.e. human brain matter) into her brain so that the rejection reaction will constantly provide the right amount of damage to her brain and keep it at the desired size.

Ladybird has automatic extraction organs, long and translucent, which emerge from a hatch on her back. When Ladybird needs to take in new brain matter and is close enough to a suitable target, they will wrap around her victim and drag their target into her back for extraction. This cruel design has been compared to that of an autonomous iron maiden. When Ladybird needs new brain matter, she experiences an immense hunger which overrides her will.

Being modelled after the structure of a human body and with the structure of a human brain (with mechanical processing noted as conceivably being able to 'observe' waves or particles like a human brain does), Ladybird is capable of using an esper ability. This ability changes whenever new brain matter is introduced due to changes in the rejection and damage pattern, with Ladybird having been shown using a telekinetic, then a pyrokinetic, and then a wind-based power. Rather than being a brain given a body like the esper cyborg Rensa, Ladybird is described as a body given a brain.

Esper abilities:
 * Ladybird is designed to be capable of utilizing esper abilities, being modeled after the structure of a human body and replicating the structure of a human brain (with mechanical processing noted as conceivably being able to 'observe' waves or particles like a human brain does). Due to the change in the rejection and damage pattern, the esper ability Ladybird changes every time new brain matter is introduced.(4-11)
 * Completely different approach from Rensa (esper cyborg), rather than a cyborg made by giving a brain a body, a body given a brain.(4-11)

Pt16:
 * Translucent thing, several predatory organs stick out like thin insect wings/long tongues, wrap around target to bind then shove inside
 * Overriding hunger(13/14/16)

Pt13:
 * Only way to preserve self, devour raw body tissue, bring to most important body part, intentionally introduce foreign object, trigger rejection reaction, continue to damage head in just right way
 * Cruel design, same time - everything needed to survive contained inside, built as autonomous iron maiden, victim into back, door shut, completely automatically

Unsorted Notes:
 * Chronology:
 * Ch2Pt1:
 * Ch2Pt6/7:
 * Ch3Pt6/18:
 * Ch4Pt4-18:

Afterword:
 * Android created from scratch, Ladybird/ladybug, reference idea coloration meant to make humans like them but apparently orange with black spots coloration actually warning color similar to wasp's stripes rather than protective colors to blend into surroundings, show off how violent they are to keep enemies away, say not a tasty treat.
 * Strongest physically, pure science, Kihara brand, live in limited world - no interpersonal relationship, short/flat, racing swimsuit showing figure, immature mentality, partially designed to constrast with Frillsand
 * Kamachi liked her casual interactions with Hasuu, forming connection unrelated to good/evil dark side thing to do - having connection not mean can fully trust

Personality TSP:

Background TSP:

Chronology TSP:
 * Ch2Pt1
 * Ch2Pt6/7
 * Ch3Pt6/18
 * Ch4Pt4-17

Coin of Nicholas
List of voiced wishes: (Use UncertainPositing)
 * “Open this door” (Pr)
 * “Please give me another partner!!”(2-3)
 * “Make Benizome’s shoes slip”(2-7)
 * “Keep my shoes from slipping”(2-7)
 * “Open this lock”(3-2)
 * “Open that cover for me!!”(3-10)
 * “Show me where the special screwdriver is”(3-13)
 * “Open up the earth for me”(3-17)
 * “Concentrate her. Concentrate Kaai inside me.”(failed, no charge, 3-17)
 * “Heal all of her injuries right this instant”(3-18)
 * “Make his gun malfunction”(4-18)

Other:
 * Hamazura testing (1-1)
 * Escapes/'Accidents' during Operation Handcuffs
 * Anti-Skill collapse foaming at mouth, hold coin between hands clasped as in prayer (3-17)
 * Cell lock (BTL4)

Unsorted Notes: Ch3Pt10: Manhole requiring special tool, Santa present, route not possible, open cover, heavy metallic scrapping as barbell-heavy manhole cover slowly slide to side like tugged by fishing line
 * Prologue: Leaning on door, warp/rust?
 * Bearded old man, golden glitter, little larger than 500 yen coin, dull, shine bright at point on edge, slowly spread clockwise from top
 * Spiritual item ignores all probability and statistics to give designated phenomenon 100% success rate
 * Ch1Pt1:
 * Wake up on Christmas morning to find in hand, seen several similar accounts on message boards/social media, some claim to take to pawn shop, real gold
 * Detailed user guide appear on R&C Occultics, quickly spread across internet
 * Open rusted-shut door, years of rust fill gap or door warped, some physical reason why not open, ignored to grant wish
 * Tested before that
 * Hold coin and pray, Mugino's bra hook undone, nearly killed by Takitsubo
 * Same fail to undo Kinuhata's bra hook, not unhook bra that not exist, nearly killed by Kinuhata, coin not do impossible
 * Rules as far as known:
 * The coin fixes an action's success rate at 100%
 * After a use, one hour to recharge, regardless of quantity/quality of action performed
 * Rules from R&C manual and confirmed
 * Another one to add: Espers can use coin without penalty/side effects
 * Not 1/4 way full yet
 * Ch1Pt3: Full charge, one hour pass, tell time pass since phone off
 * Ch1Pt10: Unsure if use on man, work for "open this door" or "win me this roulette round", not know if work for "let me defeat this guy", want to avoid wasting wish and waiting for another hour
 * Ch1Pt11: Coin, 100% odds once, think could get Yomikawa away without hurting her?
 * Ch2Pt2: Hikami Ryougo sold weird gold coin to pawnshop?, shine fill outer edge, shadow gone, apparently pure gold
 * Ch2Pt4: Weird coin leftover, flip away, land in waste bin
 * Ch2Pt7: Benizome has coin, how much power over humans acting with will of own, target inanimate, countered wish, eyeline, not tested when two people use on some thing, Benizome know might happen once spread - survive without help, only one way to use - to negate anothers
 * Ch3Pt2: Used Vivana's coin to open lock as own not ready, click, drawer open, Lifeline
 * Ch3Pt13: Special screwdriver from people extracting personal info and data from electronic trash to look inside hard drive "Lifeline", almost in SD23, trash collectors, show where, sound like kick metal panel, look to see diamond-shaped yellow "!" road sign warning of danger, stabbed diagonally in trash, dent sound from sign, panel/door buried in trash at base, metal container, tunnel, floor cut away for stairs
 * Ch3Pt17: Open earth, fist burst up through ground, repeat same things like broken toy, concentrate inside her, seen fantastical phenomena, stare at map and place blockade along every route, suspect still escape, assumed esper power/technology but not enough to explain, not jealous - trump card double-edged sword
 * Not charged, used for wrong thing, die?, without coin - not attempt reckless plan, even if had - might have been able to escape after failed, not option after using coin wrong, close off own possibilities by using, people using tool or tool manipulating people, feel like curse
 * Yomikawa thinking, Kuroko had one, not just criminals, coins given to Anti-Skill, accidental deaths from people unnaturally breaking the rules because some secretly praying to the coins?
 * Ch3Pt18: Initial guiding noise all received, not grant wish for billion yen every five minutes forever, large place, finish charge, heal injuries, light vanish but nothing happen, not all powerful, open vault but gain nothing if empty, not grant impossible, Vivana already tried, learning wounds past point of being healed
 * Ch4Pt13: Not charged, discard
 * Ch4Pt18: Kihara spots fully charged and grabs, want to start next research even if rely on non-science, malfunction, fire bullet without pulling trigger, malfunction other than bullet jam or explode inside, present from heaven?, coin trap that provides obvious miracles but also take away all other options might try, die while still gripping
 * BTL4: Flick coin and catch, add foreign element shred flowchart, set up so dismantle and peacefully surrender no matter how play out, happy ending torn to pieces, all chose for selves to dive into free world of high-risk death, who got random, only one break free of its bond on own, slip below Anna's radar, contacted during day but overlooked - unusual
 * Slide edge of coin along crossbar of barred door, click of mechanism, unlock with no regard for how lock actually worked, yet another miracle, cell of science not hold magic - blunt metaphor
 * Spiritual item limited to Christmas as name suggests, absorbs power directly from ley lines instead of from magician body, technically more like a grimoire than a spiritual item
 * Aft: If everything went different from normal really was due to coins sending people down different routes, accidents/rampage by nameless Anti-Skill officers came from coins given to Anti-Skill, kind teachers have unspeable feelings lurking deep inside? Phrase wish poorly and end up with result never wanted? Up to imagination
 * Ep: Lost temporary goal of escape after throw coin, step away from direction defined by assumption that can escape as long as had coin.

Appearance

Principles

Only working on Christmas Day, the Coin of Nicholas can grant its holder's wishes.

After it is used, it takes one hour for the coin to recharge its power before it can be used again, regardless of the quality or quantity of the action it had performed or whether the wish was successfully granted. The coin's charge is indicate by the amount of light shining from its outer edge, which gradually increases clockwise (on the front of the coin) from the top of the coin as the coin charges. Once the dull outer edge is fully lit again, the coin is fully charged.

Although considered a spiritual item, it draws its power from the ley lines rather than using magical power from the user's body like most spiriual items, making it similar to grimoire. Because of the way it functions, it can be used by espers without them experiencing the usual rejection reaction which they would normally suffer from using magic directly.

Chronology

As per Anna Sprengel's intentions, the coins were randomly distributed to various people in Academy City, who woke on Christmas Day to find a coin in their hand. Shortly afterwards, a user manual was posted on the official site for R&C Occultics and quickly spread across the internet. The coins which were given to members of Anti-Skill and the Dark Side of Academy City greatly distorted the course of Operation Handcuffs, turning it into a slaughter.

Vanishing Tunnel

 * Primarily covered in Ch4
 * Referred to in Ch2/3 as Academy City's Greatest Taboo and Vanishing
 * Collapse?
 * Loophole/lifeline (抜け穴, Nukeana)
 * Appearance/physical dimensions
 * Structures/objects/machinery within the tunnel

Unsorted Notes:
 * Dark side uses many more times official amount imported
 * Nature

EP Giant circular space of the Vanishing Tunnel Bizarre space gathered in towards Space not actually exist Aggregation of AIM Diffusion Fields that appeared as a result of an experiment Can no longer be erased Collection of weak energy absorbed toward a single point

4-6 “Giant mass of AIM Diffusion Fields.”

4-4 Construction lights set up Over 250 meters across, perhaps more than twice as deep, perfectly circular space made of reinforced concrete at very bottom - remind different of different (common utility duct, circular colosseum, switchyard's turntable, underground temple dedicated to god one must never offer prayer, crucial piece help solidify proper image

Train, peer down over railing Turntable Concrete columns at even intervals around edges, none in central circle, flat concrete floor, smaller circle, rotate to change train direction, track outside circle extend in 12 different directions, look like giant metal flower

Tracks, signal lights, transformers, maintenance equipment, control room, fifteen-car train - freight train Dark side's lifeline, plank of Carneades

Doubt turntable all of it, container yard, maintenance zone hidden further out from center Narrow catwalk built along circular wall, descended stairs, Last flight of stairs, feel different from when looking down from above, 250m larger than domed stadium, like sports field look bigger from stands than on TV

4-4 Construction company building secret tunnel not enough to earn name Construction Board Director not know of tunnel/true nature Massive underground structure just appear out of blue one day Not actually exist

“Kazakiri Hyouka was not just a single individual. She is more like one piece of the Imaginary Number District, an entire city created from the aggregation of AIM Diffusion Fields. …It all began with a project meant to cut out a portion of that territory and extract it as a new resource. Unlike the microscopic alchemy performed in the particle accelerator, this would have been on the macro scale and cost very little. But not even the group of researchers who guided all that power through the city could have predicted it would take this form. Academy City’s Greatest Taboo is such a dramatic name. In truth, it was a major failure that needed to be covered up. Everyone involved was at their wits’ end.”

“A nonexistent pathway unofficially connected Academy City to the world outside, increasing the risk of the outer world’s collapse through cultural exchange and technological contamination. The entire world very well could have been destroyed from this single point. While the researchers had hoped to extract materials from the Imaginary Number District, whatever came from there might have transformed the outside world into something truly grotesque. …Yes, that the world still exists as it does now was no more than dumb luck. It was nothing we did on our end. Kazakiri Hyouka and the other inhuman monsters simply showed no interest in that. If something had occurred to them and they had tried it, the world would have ended.”

Ghost of powerful energy and aggregation of weak powers, opposite, came together, malfunction Trying to extract inorganic materials from the unseen city Cannot be in same place, two ghosts not coexist

“Hard to say if that research was a step forward or a step back. Like I said, they failed. They could not control it, so even the remains of their project you see here cannot be erased. I believe the natural half life was about 12,000 years. In the worst case, the Imaginary Number District could have been converted into real numbers, crushing Academy City in the process. I think the project could have found success if they could have cut off a piece at a workable size and found a way to control it. In that sense, that ghost really is the strongest as an individual and an enviable success.”

“It was still a risky gamble, though. The odds were low, but if the tunnel had lost, this temporary space itself would have vanished and we would all have become fossils after being buried deep below the surface.”

Principles:

The Vanishing Tunnel is not a conventionally constructed tunnel, being a giant mass of AIM diffusion fields which manifested in the physical realm as an underground space, over 250 meters across and perhaps more than twice as deep, as the result of a failed project to extract material resources from the Imaginary Number District. Although the Vanishing Tunnel is described as a temporary space, one which is said to not truly exist, it apparently has a natural half life of around 12,000 years.

The project's goal was to cut out a portion of the Imaginary Number District, part of the "city" created by the aggregation of AIM diffusion fields, and extract inorganic materials and resources from it. The extraction would have been done on a macro scale rather the microscopic work performed in the particle accelerator and apparently cost very little. The researchers guiding the power through the city ultimately failed to control it, did not predict the form it would end up taking and were unable to erase the underground space which had been created. In referring to the incident, Kihara Hasuu mentioned that in the worse case, the whole Imaginary Number District could have been converted into real numbers and crushed Academy City, but thought that they might have found some success if they had cut off a piece at a workable size and found a way to control it.

Being an aggregation of weak powers, the Vanishing Tunnel is the opposite of an entity sustained by a powerful energy emission, such as the artificial ghost Frillsand G. As a result, the two of them cannot co-exist in exactly the same place. Kihara Hasuu exploited this to neutralize Frillsand by forcibly bringing her together and into conflict with the tunnel, causing the ghost to malfunction. According to Hasuu, although the odds were low, if the tunnel had lost, the temporary space would have vanished and those inside been buried. After the original high energy emission ceased, the collection of weak powers were able to act as a sustaining substitute, focused towards a single point.

The project's major failure and the tunnel it created were covered up, with even members of the Academy City Board of Directors (such as Valart Signal, in charge of construction and deeply involved in the Dark Side) not fully aware of the Vanishing Tunnel's true nature. With a nonexistent pathway unofficially connecting Academy City to the outside world, there was a risk of Academy City's information and technology leaking through it, with certain people (such as Kihara Hasuu) seeing a risk of the outside world collapsing from cultural exchange and technological contamination. There was also the possibility of the outside world being distorted by entities coming from within the Imaginary Number District.

The Vanishing Tunnel acts as a loophole (抜け穴) and lifeline for the Dark Side of Academy City, which consumes several times more than the official amount of material resources that Academy City imports from the outside world. These extra materials are secretly taken into the city through the tunnel by train, with recycling efforts being promoted on the surface partly to conceal the discrepancy.

Background:

The Vanishing Tunnel came into existence as a result of a failed experiment to extract resources from the Imaginary Number District, causing the mass of AIM diffusion fields to manifest in the physical realm as a large space underground.
 * Concealment (recycling)/lifeline for the dark side

Chronology:

On December 25th, during the events surrounding Operation Handcuffs, a large number of people from the Dark Side of Academy City, having found out about 'Academy City's Greatest Taboo', headed for the Vanishing Tunnel in order to escape from the city.

Other
Other
 * Prologue, Toarusyousetsu
 * Chapter 1, Toarusyousetsu
 * Chapter 2, Toarusyousetsu
 * Chapter 3, Toarusyousetsu
 * Chapter 4, Toarusyousetsu
 * Epilogue, Toarusyousetsu
 * Index atwiki

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