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Pewter: "Everything the Boss did, she did for you. You should ask her about it."
Date: "..."
Pewter: "She truly cares about you, you know. That’s why she kept silent about what happened six years ago."
Pewter speaking to Date about Boss

Boss (ボス, Bosu) is a main character in AI: THE SOMNIUM FILES and a character featured in AI: THE SOMNIUM FILES - nirvanA Initiative and the Lemniscate YouTube series.

As her name implies, she is the commander of Tokyo Metropolitan Police Department's Advanced Brain Investigation Squad (ABIS). Boss is Kaname Date’s direct superior and long-time friend. She appears to be an easygoing optimist with a carefree attitude, but she is as cunning as a fox with a quick wit.

Design[]

Boss has messy dark-brown hair that she ties back in a ponytail. She has thick brown eyebrows and brown eyes. She seems to usually wear minimal make-up, though she is known on occasion to wear red lipstick. Boss wears a red leather jacket over a dark grey and black hooded dress. She leaves the zipper for her dress undone most of the way, and her jacket open, a nod to the informal atmosphere she tries hard to maintain. Boss wears black gloves and black crew socks under red leather boots. Her resting face is largely neutral, but her narrowed eyes and pouted lips give the impression of an inquisitive person.

Personality[]

Boss is impulsive, confident, and level-headed. This makes her great at interrogations because she never fails to ask the hard questions. She takes her work seriously, but tries her best to construct a relaxed work environment, as is evidenced by the way she decorates her office, and her treatment of her colleagues. Boss is not above joking around, often making Pewter or Kaname Date the butt of her jokes. This often takes the form of playful teasing, or sexual innuendo. She is rebellious, not hesitating to go behind HQ's back when it is required. Boss is fiercely independent, but also fiercely loyal and protective. She will do whatever it takes to keep her friends safe and healthy, even resorting to illegal means, such as blackmail, in dire circumstances.

Story[]

Shizue Kuranushi (暮主 静枝, Kuranushi Shizue), nicknamed Boss (ボス, Bosu), is a main character featured in AI: THE SOMNIUM FILES, AI: THE SOMNIUM FILES - nirvanA Initiative, and the Lemniscate YouTube series.

As her name implies, she is the commander of Tokyo Metropolitan Police Department's Advanced Brain Investigation Squad (ABIS). Boss is Kaname Date’s direct superior and long-time friend. She appears to be an easygoing optimist with a carefree attitude, but she is as cunning as a fox with a quick wit.

Early Life and Police[]

Born Shizue Kuranushi, Boss would eventually go on to become a member of the police force. In her 20s, she was part of the same rookie class of police recruits as Hayato Yagyu, and the two formed a close friendship with each other. While Hayato would go on to become a homicide detective, Shizue would eventually go on to become commander of the new investigation department, Advanced Brain Investigation Squad.

Cyclops Serial Killings[]

One day, in 2013, Boss's long time friend Hayato Yagyu got caught up in business with the Kumakura family. Hayato had intended to come clean for his lover, Hitomi Sagan, but was given one final mission by Rohan to kill Hitomi and her daughter, Iris Sagan. Hayato, wanting to find a way to leave the Kumakura family while protecting Hitomi and Iris, reached out to Shizue for help. As the head of ABIS, Boss told Hayato about the Psync machine and how it could be used to swap around bodies. She devised a plan to have Hayato swap bodies with Rohan, while Hayato in Rohan's body would announce to the Kumakura gang that Iris and Hitomi were not to be approached under any circumstances, and Rohan would be arrested for Hayato's extrajudicial spree of killings. The body swap experiment was successful, but a police officer who hadn't figured out about the swap unknowingly let Rohan in Hayato's body escape. Boss managed to rush to the Sagan residence in time along with Hayato in Rohan's body, and arrested Rohan in Falco's body before he could kill Hitomi.

During the Psync that led to Hayato and Rohan swapping bodies, Boss and Hayato discovered crucial information from Rohan's mind about the Cyclops Serial Killings, learning that they were the combined effort between Rohan and the murderous psychopath, Saito Sejima. With this information, after Hayato in Rohan's body announced to the Kumakura gang to never attach Hitomi or Iris, Boss sent Hayato to the Sejima residence to interrogate Saito, in hopes of using Rohan's body to trick Saito into dropping his guard and in turn be able to bring Saito into police custody for his crimes. Unfortunately, Saito was not easily fooled and took Hayato hostage, using truth serum to force Hayato into confessing the truth about the body swap. Saito used this knowledge and stole the Prototype Psync machine to perform a body swap on Hayato, which in turn led the latter to end up in Saito's body, while Saito in turn would end up in Rohan's body. However, as the Psync machine only sent information to their brains piece by piece, both awoke in their new bodies with no memory of anything. Saito's body was imbued with a stimulant, and Hayato awoke from the Psync and instantly fled. Boss, having learned of the Prototype Psync machine being stolen and having lost contact with Hayato for a week, eventually discovered him at Golden Yokocho in Saito's body and figured out what had happened. She took Hayato in and recruited him as a member of ABIS, giving him the new name Kaname Date.

As Hayato, now under the name Date, was inhabiting Saito's body, Boss immediately took it upon herself to deal with Saito's father, So Sejima, to ensure that he wouldn't file a missing report for his son. Soon after hiring Date, she went to the Sejima residence and blackmailed So into a deal where he would allow Kaname Date in Saito's body to work with ABIS under the condition that Saito's involvement in the Cyclops Serial Killings would never be revealed to the public. As So knew that Saito's crimes being publicly exposed would ruin his political career and public image, he readily accepted the deal.

Advanced Brain Investigation Squad[]

Boss is the commander of the Tokyo Metropolitan Police Department's Advanced Brain Investigation Squad (ABIS). The majority of the appearances she has take place in her office there.

The Adopted Daughter[]


One day in 2016, Boss came to Aioen Orphanage and adopted their 15-year-old foster daughter from the Chieda family and renamed her Mizuki Kuranushi. Sometime after that, Boss trained her as a secret agent of ABIS.

Murder of Shoko Nadami[]

Boss is one of the first characters introduced to the player in the game, as she appears in the first scene at Bloom Park at the scene of the murder of Shoko Nadami. Her dialogue is mostly brief, with the quick mention of the Original Cyclops Serial Killings, which she ignores Kaname Date's questions about. She is shown holding an umbrella to keep herself clear of the rain.

A: New Cyclops Serial Killings[]

During the left branch of the game, Boss continues to be involved in the investigation of the New Cyclops Serial Killings.

AB/AAA: Fate Under False Appearance[]

In the Ota Route and Annihilation Route, on Monday, Saito Sejima in the body of his father, So, calls up Boss and drives her to the Chemical Plant at Kabasaki. Saito induces her with a sedative and then uses the Prototype Psync Machine to swap bodies, leaving Boss in So's body while Saito inhabits her original body. Boss, sedated from the Psync Machine's special function, is shot in the head by Saito, who then proceeds to cut So's body into pieces, killing Boss. The dismembered corpse is then stuffed into a vase and placed back at the Sejima Residence.

AAB: Attempt to Intervene Date's Operation[]

In the Mizuki Route, Under the pressure of the superiors, Boss tried to persuade Date to stop the crusade against So Sejima, whom he believed to be the murderer, but failed to stop the success. As Date confronts Saito in So's body and kills him, Boss is spared this fate and survives. Not knowing that the So Sejima who was killed was in fact Saito, the Metropolitan Police Department retroactively declares So Sejima to be the New Cyclops Killer.

B: Disappearance of Renju Okiura[]

TBA

Half Body Serial Killings[]

TBA

Appearances[]

AI: THE SOMNIUM FILES
Day 1: sigAI
Appears
BRaiN
Absent
Day 2: saikAI
Appears
PaiN
Absent
Day 2: meikAI Day 2: keitAI
Appears Appears
Day 3: syokubAI Day 3: gyoukAI
Appears Appears
VaiN VILLaiN
Voice Only Voice Only
Day 3: rihAI Day 3: gumAI Day 3: kyuusAI
Appears Appears Appears
Day 4: youdAI Day 4: jukkAI Day 4: syuurAI
Appears Appears Appears
SWaiN CURTaiN MaiN: 1
Absent Appears Absent
Day 4: jikAI Day 4: syougAI Day 4: kikAI Day 4: irAI Day 5: kenzAI
Appears Appears Appears Absent Absent
Day 5: zugAI Day 5: seisAI Day 5: jinnAI Day 5: dakkAI Day 5: jutAI
Appears Appears Body Only Mentioned Appears
SUSTaiN REFRaiN MaiN: 2 MOUNTaiN
Absent Appears Absent Voice Only
Day 5: syokuzAI Day 5: ihAI Day 6: kekkAI Day 5: kokkAI
Body Only Body Only Absent Appears
Ota: END Day 6: hiAI Annihilation: END Iris: END Day 6: sousAI
Appears Absent
CAPTaiN CHaiN
Absent Absent
Day 6: sanpAI Day 6: hakAI
Appears Flashback
Mizuki: END Three Months Later: kassAI
Appears
Resolution: END
AI: THE SOMNIUM FILES - nirvanA Initiative
6 Years Ago Present
Converge Ch 0:
A Strange Tale (Past)

Appears
Converge Ch 0:
A Strange Tale (Present)

Appears
Mizuki Ch 0:
New Investigation

Absent
Ryuki Ch 0:
Dispossessed

Absent
Mizuki Ch 0:
Alone

Absent
Ryuki Ch 1:
Anyone Imagines

Appears
Mizuki Ch 1:
Pass Mildly Away

Appears
Ryuki Ch 1:
Nefarious Institute

Voice Only
Mizuki Ch 1:
Nostalgic Idol

Absent
Ryuki Diverge:
遐エ邯サ逋セ蜃コ

Absent
Ryuki Ch 1:
Ought to Know

Absent
Mizuki Ch 1:
End Where I Begun

Absent
Mizuki Ch 2:
Traveler

Appears
Ryuki Ch 2:
Nothing to Be Done

Mentioned
Mizuki Ch 2:
Necessary Intervention

Voice Only
Ryuki Ch 2:
Naixatloz's Intentions

Absent
Mizuki Ch 2:
Left Behind

Appears
Ryuki Ch 2:
Go

Absent
Ryuki Ch 3:
Farewell

Appears
Mizuki Ch 3:
The Expense of Spirit

Appears
Ryuki Ch 3:
Need Info

Voice Only
Mizuki Ch 3:
Neurotic Inception

Absent
Ryuki Ch 3 R2:
Joy for Anguish

Appears
Ryuki Ch 3 R1:
Smiles for Tears

Absent
Mizuki Ch 3 M1:
Hell

Absent
Mizuki Ch 3 M2:
All Living Things

Absent
Ryuki Ch 4 R2:
I Found Me

Appears
Mizuki Ch 4 M1:
Visions

Absent
Ryuki Ch 4 R1:
Well-Known

Mentioned
Mizuki Ch 4 M2:
Of Arms and Of Man

Appears
Ryuki Ch 4 R2:
Nested Insecurities

Voice Only
Mizuki Ch 4 M1:
Nonentity Incognito

Absent
Ryuki Ch 4 R1:
Nearly Interesting

Absent
Mizuki Ch 4 M2:
Novel Ingress

Voice Only
Ryuki Ch 4 R2:
Past Its Ken

Absent
Mizuki Ch 4 M1:
In Truth

Absent
Ryuki Ch 4 R1:
The Mind of God

Absent
Mizuki Ch 4 M2:
Who's There

Absent
Mizuki Ch 4 M3:
Bid the Soldiers Shoot

Absent
Komeji and Shoma: END Ryuki Ch 5 R1:
Not All A Dream

Appears
Mizuki Ch 5 M1:
Births

Appears
Mizuki Ch 5 M2:
All That We Are

Mentioned
Mizuki Ch 5 M3:
Sweet Silent Thought

Absent
Ryuki Ch 5 R1:
Nemesis Identified

Appears
Mizuki Ch 5 M1:
Nightmare Irreconcilable

Voice Only
Gen and Amame: END Kizuna and Lien: END
Ryuki Ch 5 R1:
She Was the Universe

Appears
Mizuki Ch 5 M1:
The End of Craving

Appears
Ryuki Diverge:
All This Happened, More or Less

Absent
Explosion: END Mizuki Epilogue:
Braver Than All Flowers

Appears
閭。陜カ荵句、「邱ィEND
Resolution: END

Gallery[]

Trivia[]

Etymology[]

  • The nickname Boss (ボス) is a play on her family name Kuranushi (暮主):
    • 暮 (kura) can be read as “bo” and 主 (nushi) can be read as “su”, making "bosu."
    • The kanji in her name mean "livelihood" and "master," which may be referencing her role as a literal boss to other members of ABIS.
    • Since her name is initially revealed in katakana and only given kanji in the appendix, it may initially sound like 倉主, meaning "warehouse owner," a possible red herring.
  • The first kanji in Shizue (静枝) means “quiet,” hence Mizuki thinking the name does not fit her.

General[]

  • In Day 5: Tuesday –ihAI–, after "Boss" is revealed to be Saito Sejima, the catchlight in Boss's eyes disappears. This animation is used in other routes of the game, including:
    • Day 3: Sunday –rihAI–, when Date denies dreaming about kissing pornstars. Boss responds with "You sure about that?" using "Saito's" expression.
    • Day 5: Tuesday –syokuzAI–, when Aiba is about to present new evidence in the New Cyclops Serial Killings. Allegra Clark, the voice actress for Boss, revealed that Saito is in the body of Boss during this scene.[1]
  • In a fan-made Character Poll for AI: THE SOMNIUM FILES held on Twitter, Boss came in 4th place.[2]
  • In the Famitsu Interview, Kotaro Uchikoshi and Akira Okada stated that the design for the 4th victim of the Original Cyclops Serial Killings was actually Boss's original design. Once her design was changed, they reused the original design for the victim as she appears in PSYNCIN' IN THE VaiN.[3]

Navigation[]

AI: THE SOMNIUM FILES
Media
AI: THE SOMNIUM FILESAI: THE SOMNIUM FILES DEMORaiNBOW AFFaiR Complete SoundtrackREVERIES IN THE RaiN SoundtrackTHOUGHTS REMaiN BELOW Artbook
Characters
Kaname DateAibaIris Sagan/A-setOta MatsushitaMizuki OkiuraBossPewterNew Cyclops Killer
Hitomi SaganMayumi MatsushitaRenju OkiuraMamaShoko NadamiSo SejimaMoma KumakuraRohan KumakuraCyclops Serial Killer
#89FalcoBodyguardsTakero MatsushitaManaka IwaiSaito SejimaYakuza AYakuza BNurseReceptionistMermaidTaxi DriverInspector
Locations
Tokyo
Chiyoda District: Police Headquarters (Boss's Office; Psync Room; Interrogation Room) • Sunfish Pocket
Koto District: Harbor Warehouse District (Cold Storage Warehouse) • Date Residence
Meguro District: Sagan ResidenceTiefblau
Minato District: Sejima ResidenceKumakura OfficeIkume ShrineLemniscateCentral Hospital
Near Kabasaki District: Bloom ParkOld Chemical PlantMatsushita Diner
Shinjuku District: Golden Yokocho (Marble)
Other: Fuchu City (Fuchu Prison) • Akikawa ValleyOkutama MountainsEitoku High
Somnia
SINKIN' IN THE BRaiN (Spoiler) • PSYNCIN' IN THE PaiN (Spoiler)
PSYNCIN' IN THE VaiN (Spoiler) • PSYNCIN' IN THE SWaiN (Spoiler)
PSYNCIN' IN THE SUSTaiN (Spoiler) • PSYNCIN' IN THE CAPTaiN (Spoiler)
PSYNCIN' IN THE CURTaiN (Spoiler) • PSYNCIN' IN THE REFRaiN (Spoiler)
PSYNCIN' IN THE VILLaiN (Spoiler) • PSYNCIN' IN THE MaiN: 1 (Spoiler)
PSYNCIN' IN THE MaiN: 2 (Spoiler)
PSYNCIN' IN THE MOUNTaiN (Spoiler) • PSYNCIN' IN THE CHaiN (Spoiler)
Chapters
Red Route: sigAIsaikAImeikAIsyokubAIrihAI
youdAIjikAIzugAIsyokuzAI
Yellow Route: syougAIseisAIhiAIsanpAI
Green Route: gumAIjukkAIkikAIjinnAIihAI
Purple Route: keitAIgyoukAIkyuusAIsyuurAIirAIdakkAIkekkAI
Pink Route: kenzAIjutAIkokkAIsousAIhakAIkassAI
Organizations
Tokyo Metropolitan Police Department (Advanced Brain Investigation Squad) • Ujisaki Family (Kumakura FamilyKumakura Estates) • Secret Society NAIXATLOZForeign Mercenaries
LemniscateSunfish PocketMarbleTiefblauFamiSto8-12Elgorg
Items
Wadjet SystemEvolverLight Synaptic Nerve Connection DeviceDate's CarShovelForgeOdoroki-man ChocolateGeostationary Satellite X00639
Events
Chemical Plant ExplosionOriginal Cyclops Serial KillingsBreak-In at Sagan ResidenceNew Cyclops Serial KillingsIncident at Minato District HighwayDisappearance of Renju OkiuraOperation: Iris Rescue
Full List of Events
Lemniscate YouTube Series
Media
Lemniscate (channel)To-Witter Archives 2019 (Tesa)To-Witter Archives 2020 (Tesa)

To-Witter Archives Aseton: Main PageAseton Plays DanganronpaRevisiting the YouTube seriesTokyo Game Show & AI Launch DayAseton Zero EscapeAseton Terraria PioneerCrypt of AsetonAseton of HyruleIndivisible Aseton
Weibo Archives
REVERIES IN THE RaiN Soundtrack
A-set To-Witter (English)A-set To-Witter (Japanese)a_set_on Weibo (Chinese)Mato To-WitterKotaro Uchikoshi Eng To-WitterFluerichaji To-Witter

Love Songs From Another WorldVirtuoso of the Space Time Continuum
Characters
A-set (impostor) • Ota MatsushitaMizuki OkiuraKotaro UchikoshiFluerichajiWhite Horse WomanBloody Polar Bear
Renju OkiuraHitomi SaganMayumi MatsushitaMama****** ****AibaBossPewterYūsuke KozakiAkira OkadaCyclopsAmame DoiHorusBastet • "Uncle" • Missing Girl • Missing Girl's Parents
Locations
Tokyo: Sagan ResidenceLemniscate OfficeSunfish PocketKabasaki DistrictBloom Park (Somnium) • Old Chemical PlantMatsushita DinerIkume ShrineGolden Yokocho (Marble) • Harbor Warehouse District (Okiura Fishery Cold Storage Warehouse) • Sejima ResidencePolice Headquarters (Boss's Office/Psync Room) • Okutama Mountains
USA: San FranciscoCalifornia
Organizations
LemniscateSpike ChunsoftSecret Society NAIXATLOZGame Developers ConferenceSunfish PocketMarbleTokyo Metropolitan Police Department (Advanced Brain Investigation Squad) • Anime Expo
Events
A-set's video seriesCyclops Serial KillingsChemical Plant ExplosionDisappearance at Bloom ParkA-set's campaign against NAIXATLOZSpike Chunsoft's panel at GDC Disappearance of Iris SaganImpersonation of Iris SaganIris Sagan's playthrough of AI: THE SOMNIUM FILESVisit to the Somnium Files DiscordSpike Chunsoft's panel at Anime Expo 2019
Videos (Pre-release)
0: Uchikoshi Introduces Net Idol A-set! (Invincible Rainbow Arrow)
1: Tesa's Top 3 Favorite Snacks and Mascots!
2: Tesa Visits Maid Cafe Sunfish Pocket!
3: There's No Way This Trespassing Idol Can Be This Cute!
4: Tesa's Matsushita Diner Review! Omelet Rice Edition!
5: A-set Reservations Unknown
6
fAInal: rw nw prt m hrw
A-set's GDC All-Access Convention Report!
Sneaking Into ABIS!
Exploring a Dreamworld!
This Is Your Idol
7: Zanki Zero Let's Play! Can Tesa Survive the Ruins?! (Alt)
8: It’s time to talk about the Cyclops Case (might lose subscribers for this...)
9: My 10-Day Vacation Diary
10: AI: THE SOMNIUM FILES Let's Play! Detective Tesa!
11: That Time I Got Forced To Do Impressions by an Egyptian God
12: Tesa's Spirited Away Adventure: Picture Book Edition!
13: Tesa Answers Over 30 Questions at Super Speed!
14: "Invincible Rainbow Arrow" Dance feat. Mizuki, Ota, and...White Horse Woman?!
15: Sneak Peek at AI: THE SOMNIUM FILES LE/Day One Edition!
16: You Won't Believe the Friend I Just Made! (Secret video)
17: Graduation (AX Panel)
Videos (Post-release)
18: A-set's AI: THE SOMNIUM FILES Exclusive Launch Day Let's Play
19: AI: THE SOMNIUM FILES Let's Play Part 2! Ota is here!!!
AI: THE SOMNIUM FILES - nirvanA Initiative
Media
AI: THE SOMNIUM FILES - nirvanA InitiativeHARMOniOUS DISCORD SoundtrackSECRET OF THE WORLD: THE DEFIniTIVE ART BOOK
Characters
Mizuki DateAibaKuruto RyukiTamaMasked Woman (True Identity) • Amame DoiGen IshiyaganeKizuna ChiedaLien TwiningAndes KomejiShoma EndaTokiko ShigureTearerKaname Date
Chikara HoradoriBossPewterMamaIris SaganOta MatsushitaMoma KumakuraJin FurueRiichi Chieda
So SejimaHitomi SaganUru SomezukiMarcoDetectiveInspectorMamoru BodaiNurseChinpei WagaiDokuta YoganoReceptionistTaxi DriverHoradori ResearchersNaix MembersForeign MercenariesPolicemenSpecial Assault Team
Locations
Tokyo

Chiyoda District: Police Headquarters (Boss's Office, Psync Room, Interrogation Room) • Sunfish PocketSekiba High
Chuo District: Horadori Institute of Genetics (Underground, Hostage Room) • Naixatloz Japan Branch (President's Office, Cathedral)
Koto District: Harbor Warehouse DistrictDate Residence
Minato District: Studio DvaitaAioen OrphanageIkume ShrineKumakura OfficeSejima ResidenceCentral Hospital
Shibuya District: Lemniscate Entertainment OfficesYoyagi Park
Shinagawa/Kabasaki District: Matsushita DinerSagan ResidenceEnda ResidenceKabasaki Chemical Plant
Shinjuku District: Golden Yokocho (Marble, Brahman World Cuisine) • Misetan Department StoreTokyo National Stadium

Somnia
New Investigation (Spoiler)
Nefarious Institute (Spoiler) • Naixatloz's Intentions (Spoiler)
Need Info (Spoiler) • Nested Insecurities (Spoiler)
Nearly Interesting (Spoiler) • Nemesis Identified (Spoiler)
Nostalgic Idol (Spoiler) • Necessary Intervention (Spoiler)
Neurotic Inception (Spoiler) • Nonentity Incognito (Spoiler)
Novel Ingress (Spoiler) • Nightmare Irreconcilable (Spoiler)
Chapters
Converge Chapter: A Strange Tale

Side Ryuki:
DispossessedAnyone ImaginesOught to KnowNothing to Be DoneGoFarewell
Komeji and Shoma Route: Joy for AnguishI Found MePast Its Ken
Explosion Route: Smiles for TearsWell-KnownThe Mind of GodNot All A DreamShe Was the Universe
閭。陜カ荵句、「邱ィ Route: 遐エ邯サ逋セ蜃コAll This Happened, More or Less
Side Mizuki:
AlonePass Mildly AwayEnd Where I BegunTravelerLeft BehindThe Expense of Spirit
Gen and Amame Route: All Living ThingsOf Arms and Of ManWho's ThereAll That We Are
Kizuna and Lien Route: Bid the Soldiers ShootSweet Silent Thought
Resolution Route: HellVisionsIn TruthBirthsThe End of CravingBraver Than All Flowers

Organizations
Tokyo Metropolitan Police Department (Advanced Brain Investigation Squad) • AMABIE-TVChieda FamilyHoradori Institute of GeneticsNaixatlozOrder of %
Items
Psync MachineWadjet System • Mizuki's enhanced pipe • EvolverEvolver MC
Bats490Fray to FreeNirvana TrialNirvana XTC-PERGE
Mizuki's ScooterRyuki's Limousine
RobotaRoboji
Events
Half Body Serial KillingsNirvana Initiative
Full List of Events

References[]

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