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"Think you can get away with talking to our boss like that?! He's tough as bricks and hard as nails! He'd never be into pussy shit like that, you fucker!"
—Chinpei shouting at Date in Kumakura Office about A-set fan issue[1]

Chinpei Wagai (輪貝 陳平, Wagai Chinpei), occasionally referred to as Yakuza A, is a minor character in AI: THE SOMNIUM FILES and AI: THE SOMNIUM FILES - nirvanA Initiative.

He is the lowest ranking member of the Kumakuras. He once had dreams of pursuing the top spot in the gang, but has since decided that he would rather focus on training his favorite dog.

During the Half Body Serial Killings, he quitted the Kumakura Family and became a film director, and is a witness to the appearance of Jin Furue's right half corpse.

Design[]

Chinpei is a fat young man. He has small eyes, thin eyebrows, a large nose and lips, a small beard, and only a handful of dark-blond hair pushed forward near his forehead.

He wears a black and white tracksuit with a bulldog graphic and blue "BULL" lettering on the left chest spot, with its sleeves rolled up, and a white sweatshirt underneath. He also wears white sweatpants with black lines, paired with yellow and black sneakers.

Personality[]

Although Chinpei's character is considerably less irritable than his trigger-happy Kumakura peers, he is far from friendly to strangers, and can be quite headstrong when he senses to be in danger. He is loyal and loving to his superiors, being particularly fond of Moma, and a dedicated partner as well, as seen when he was willing to quit crime to be with his pregnant girlfriend. He is also fond of pornography, having graduated film school originally to direct his own X-rated pictures, but later finding a job as a TV director.

His surprising side is his love of canines. He is very good at training dogs and hates people who abuse animals.

Story[]


Life as a Yakuza[]

There is a good chance that Chinpei Wagai joined the Kumakura Family as early as when he was in high school, as around the early 2010s, when he was around 15 to 17 years old, Chinpei and Dokuta Yogano assisted in and/or witnessed their leader Rohan Kumakura in torturing Hayato Yagyu for the murder of X. During that torture, Chinpei witnessed Rohan forcing Yagyu to join the Kumakura Family as an assassin.

Around November, 2013, Rohan approached the Kumakura Family, and specifically Yagyu, to inform them that they would be targeting and assassinating Hitomi Sagan and the 12-year-old Iris Sagan. However, a few days later, Rohan Kumakura (or rather, Hayato Yagyu as a parasite inside Rohan's body) declared to the Kumakura family that the kill order on the Sagan family had been revoked. And after a few more days, Rohan (this time Saito Sejima as a parasite inside Rohan) was arrested for attempted murder on the Sagan family and declared clinically insane. Chinpei's opinion and feelings with these developments, notably with his prior connection to the Sagan family, are also unknown.

With Rohan arrested and hospitalized, his younger brother, Moma Kumakura, became the new chairman of the Kumakura Family. Rohan's iron grip on the family was loosened and the Kumakuras, Chinpei included, began pursuing legitimate and less violence venues of business and success.

Shoko Nadami's Murder[]

In late October of 2019, the entire Kumakura Family was invited to the Ujisaki Family Yearly Golf Tournament held outside the Central Tokyo area. By November 2nd, the tournament was over and the Kumakura family headed back to their offices.

A: Cyclops Serial Killings[]

On November 3rd, So Sejima visited the Kumakura Office to speak with Moma, most likely regarding a case of blackmail incurred at him regarding Manaka Iwai's body. Soon after, So hid in a back room as Special Agent Kaname Date arrived at the Office himself. Dokuta and Chinpei attempted to force him out, but the pair was knocked down to the floor. When Date attempted to check the room in the back, Chinpei retaliated by shooting at him, and when that didn't work, Dokuta brought out a machine gun. With Aiba's help, Date managed to incapacitate the two of them completely, and discovered So hiding in the back.

In the Mizuki Route, two days later, on November 5th, Date approached the Kumakuras once again, this time requiring assistance with identifying the New Cyclops Killer. Moma ordered Dokuta and Chinpei to recover the cigarette buds they threw in the trash. Date determined which bud was So's and swiftly left to examine it for DNA.

B: Disappearance of Renju Okiura[]

On November 3rd, Special Agent Kaname Date arrived at the Office to interrogate the Kumakuras. Dokuta and Chinpei attempted to force him out, but the pair was knocked down to the floor. When Date discovered that Moma was a fan of Tesa, Moma forced Dokuta and Chinpei to step out of the office while they talked in private.

For the rest of the day and the next, Moma sent out Dokuta, Chinpei, and the other Kumakura members to find information on Renju's whereabouts throughout the city. On November 5th, Moma forced them to leave the office again once Date informed him that he would bring Iris to the office.

BB: Becoming A-set fan[]

By 2020, following the closure of the New Cyclops Serial Killings, Moma turned Chinpei and the other members of the Kumakura Family into A-set fans. They attended a live performance by A-set in January, and in February they welcomed a post-surgery Iris to their office. Later that day, Chinpei joined the others in a group dance together at the Harbor Warehouse District.

Becoming a film director[]

Chinpei quitted the Kumakura Family three months after Saito's death and changed careers to become a film producer. It is known that AMABIE-TV has a cooperative relationship with him.


On February 10th, a person named Tearer sent him a message via NILE saying that they needed Chinpei to lend them Studio Dvaita for an hour, during which neither he nor the staff could approach the studio, and claimed that they would give him remuneration of 5 million yen afterwards. Since Chinpei's wife was pregnant at this time, he decided to agree to the job for the reward.

After Tearer's work was done, Chinpei joined on Faith to Face, a question-and-answer show at Studio Dvaita, with his former boss, Moma Kumakura. During the show, he was among others who witnessed the right half of Jin Furue's body that suddenly appeared at the center of the room after a brief power outage in the studio. Chinpei ran away after seeing the dead body, and Moma explained to Kuruto Ryuki that he probably rushed to the toilet and threw up.

The next night, Ryuki traced the case to be related to Chinpei based on clues. Ryuki rushed to Sunfish Pocket under the prompt of Tama. After meeting him, Chinpei took out his pistol and fired three bullets at Ryuki in a panic. However, Ryuki dodged all the bullets, subdued Chinpei and interrogated him and Tearer on the evening of February 10th. information. Chinpei has since been detained by the police.

Imprisonment and return to Kumakura[]

After being detained for a period of time, Chinpei was released. However, due to the crimes of endangering the safety of others and assaulting the police made him lose his job and his wife divorced him. Chinpei only had to beg Moma to allow him to return to Kumakura Family. After he was released from prison, his only spiritual comfort was to see the photos sent to him by his already born son, during the son's birthday.

On February 22nd, 2026, Mizuki Date and Bibi visited Kumakura Office. Organized by Ritsuko Enshu, Chinpei was forced to perform puff-puff again to entertain Moma without his knowledge, just like six years ago.

Appearances[]

AI: THE SOMNIUM FILES
Day 1: sigAI
Absent
BRaiN
Absent
Day 2: saikAI
Absent
PaiN
Absent
Day 2: meikAI Day 2: keitAI
Absent Absent
Day 3: syokubAI Day 3: gyoukAI
Appears Appears
VaiN VILLaiN
Absent Absent
Day 3: rihAI Day 3: gumAI Day 3: kyuusAI
Absent Absent Absent
Day 4: youdAI Day 4: jukkAI Day 4: syuurAI
Absent Flashback Mentioned
SWaiN CURTaiN MaiN: 1
Absent Absent Absent
Day 4: jikAI Day 4: syougAI Day 4: kikAI Day 4: irAI Day 5: kenzAI
Absent Absent Absent Absent Absent
Day 5: zugAI Day 5: seisAI Day 5: jinnAI Day 5: dakkAI Day 5: jutAI
Absent Appears Absent Mentioned Absent
SUSTaiN REFRaiN MaiN: 2 MOUNTaiN
Absent Absent Absent Absent
Day 5: syokuzAI Day 5: ihAI Day 6: kekkAI Day 5: kokkAI
Absent Absent Absent Absent
Ota: END Day 6: hiAI Annihilation: END Iris: END Day 6: sousAI
Absent Absent
CAPTaiN CHaiN
Absent Absent
Day 6: sanpAI Day 6: hakAI
Absent Absent
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)

Absent
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

Absent
Ryuki Ch 1:
Nefarious Institute

Absent
Mizuki Ch 1:
Nostalgic Idol

Absent
Ryuki Diverge:
遐エ邯サ逋セ蜃コ

Absent
Ryuki Ch 1:
Ought to Know

Appears
Mizuki Ch 1:
End Where I Begun

Absent
Mizuki Ch 2:
Traveler

Mentioned
Ryuki Ch 2:
Nothing to Be Done

Absent
Mizuki Ch 2:
Necessary Intervention

Absent
Ryuki Ch 2:
Naixatloz's Intentions

Absent
Mizuki Ch 2:
Left Behind

Absent
Ryuki Ch 2:
Go

Absent
Ryuki Ch 3:
Farewell

Absent
Mizuki Ch 3:
The Expense of Spirit

Absent
Ryuki Ch 3:
Need Info

Absent
Mizuki Ch 3:
Neurotic Inception

Absent
Ryuki Ch 3 R2:
Joy for Anguish

Absent
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

Absent
Mizuki Ch 4 M1:
Visions

Absent
Ryuki Ch 4 R1:
Well-Known

Absent
Mizuki Ch 4 M2:
Of Arms and Of Man

Absent
Ryuki Ch 4 R2:
Nested Insecurities

Absent
Mizuki Ch 4 M1:
Nonentity Incognito

Absent
Ryuki Ch 4 R1:
Nearly Interesting

Absent
Mizuki Ch 4 M2:
Novel Ingress

Absent
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

Absent
Mizuki Ch 5 M1:
Births

Absent
Mizuki Ch 5 M2:
All That We Are

Absent
Mizuki Ch 5 M3:
Sweet Silent Thought

Absent
Ryuki Ch 5 R1:
Nemesis Identified

Absent
Mizuki Ch 5 M1:
Nightmare Irreconcilable

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

Absent
Mizuki Ch 5 M1:
The End of Craving

Absent
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[]

  • Chinpei's profile states that one of his dislikes is "his big brother." Kotaro Uchikoshi clarified that the original Japanese term used is Aniki, Japanese slang for a "big bro" within an organization, very commonly used within Yakuza organizations to refer to a close member of equal or somewhat higher status.[2][3] Outside of Moma and Rohan, who are ineligible to be considered an aniki due to their status as chairmen of the Family, the only character shown in the game that could qualify as Chinpei's aniki is Dokuta Yogano. It is unclear why Chinpei has a dislike for Dokuta, or for any Kumakura member for that matter.
  • During the events of AI: THE SOMNIUM FILES, Chinpei is 24 years old. However, he is seen in a flashback scene in which Rohan Kumakura tortures Hayato Yagyu and forces him to become an assassin, which must take place at a bare minimum of 6 years and 3 months prior to the events of the game.[4] During this time, Chinpei would be a 3rd-year high schooler at 17 years old, soon to be 18. Like Renju Okiura, Chinpei could've become affiliated with the Kumakura Family during high school, and fans have calculated that it's possible for Yagyu to have been working as a Kumakura assassin for around 2 years, meaning that Chinpei could have been affiliated with the Kumakuras at 15-16 years old as a 1st-year high schooler.[5]

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
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[]

  1. Day 3: Sunday -gyoukAI-
  2. Wiktionary entry for Aniki
  3. To-Witter Archives Tesa 2021: September 14th
  4. 6 years before AI: THE SOMNIUM FILES, in November, Hayato Yagyu gained amnesia and became Kaname Date. In the 3 months prior to that, Yagyu dated Hitomi after meeting her following a failed assassination attempt, in August. With Chinpei's birthday in September, he must be 17 years old at the time Yagyu met Hitomi, and seemingly much younger by the time Yagyu became a Kumakura assassin.
  5. To-Witter Archives Tesa 2022: April 13th
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