“Hello. My name is Aiba. What is your name?
“How are you? I am currently 92% charged and feeling well.”
–Aiba, in Date's Somnium

AI-Ball, also known as Aiba (アイボゥ, Aibo), is the deuteragonist of AI: The Somnium Files, and a character featured in the Lemniscate YouTube series.

She is an artificial intelligence that resides within Kaname Date's left artificial eye. Together with Date, she works for the Tokyo Metropolitan Police Department to solve crimes and catch criminals, in particular, the culprit of the Cyclops Serial Killings. She has the ability to delve into a person's Somnium and extract testimonies and memories from various persons of interest.

Appearance[edit | edit source]

In the real world, Aiba primarily takes the form of a single eyeball with a yellow iris, which most of the time is retained within Kaname Date's empty eye socket. When she is detached from Date and using her motor functions, she adopts a hamster-like mascot appearance. Her projected skin is transparent and grey, with black soles on her hands and feet. Her skin is more like a gelatinous substance, where on the inside her optic nerve is visible as a sort of pink spine.

In the Somnium world, Aiba takes the form of a young human girl. Her skin is transparent and pale, with parts of her endoskeleton visible through her arms and legs. Her hair is white, long, and unkempt, reaching down to her legs, with three pink streaks that light up like an electric current. She wears a long white dress that reaches her waist, with black and pink patterns around the edges and with gaps on her back and shoulders. Her upper legs have the same black and pink patterns, as either tattoos or some imprinted pattern. Her eyes are pink in this form, in contrast to the her hamster form's yellow motif.

Personality[edit | edit source]

She is cold and calculating but has personality when it comes to Date; she disapproves of many of Date's habits, be them chocolate collecting or cabaret clubs, to the point of vocally teasing him, but overall trusts him. However, she has shown the ability to stand up to Date and voice her opinion, as well as her own feelings regarding investigations. She's also something of a nerd, wanting to make dramatic entrances parodying Terminator and looking into Ota's otaku hobbies for "research."

Story[edit | edit source]

TBA

Appearances[edit | edit source]

AI: The Somnium Files
Day 1: sigAI Day 2: saikAI Day 2: meikAI Day 3: syokubAI Day 3: rihAI
Appears Appears Appears Appears Appears
Day 4: youdAI Day 4: jikAI Day 5: zugAI Day 5: syokuzAI Day 4: syougAI
Appears Appears Appears Appears Appears
Day 5: seisAI Day 6: hiAI Day 6: sanpAI Day 3: gumAI Day 4: jukkAI
Appears Mentioned Appears Appears Appears
Day 4: kikAI Day 5: jinnAI Day 5: ihAI Day 2: keitAI Day 3: gyoukAI
Appears Appears Appears Appears Appears
Day 3: kyuusAI Day 4: syuurAI Day 4: irAI Day 5: dakkAI Day 6: kekkAI
Appears Appears Appears Appears Absent
Day 5: kenzAI Day 5: jutAI Day 5: kokkAI Day 6: sousAI Day 6: hakAI
Appears Appears Appears Appears Appears
kassAI BRaiN PaiN VaiN SWaiN
Appears Appears Appears Appears Appears
SUSTaiN CAPTaiN CURTaiN REFRaiN VILLaiN
Appears Absent Appears Appears Appears
MaiN: 1 MaiN: 2 MOUNTaiN CHaiN
Appears Appears Appears Mentioned
Lemniscate YouTube Series
Uchikoshi Introduces Net Idol A-set! Tesa's Top 3 Favorite Snacks and Mascots! Tesa Visits Maid Cafe Sunfish Pocket! There's No Way This Trespassing Idol Can Be This Cute! Tesa's Matsushita Diner Review! Omelet Rice Edition! A-set Reservations Unknown
Absent Absent Absent Absent Absent Absent
6 rw nw prt m hrw A-set's GDC All-Access Convention Report! Sneaking Into ABIS! Exploring a Dreamworld! This Is Your Idol
Absent Absent Absent Appears Absent Absent
Zanki Zero Let's Play! Can Tesa Survive the Ruins?! It’s time to talk about the Cyclops Case (might lose subscribers for this...) My 10-Day Vacation Diary AI: THE SOMNIUM FILES Let's Play! Detective Tesa! That Time I Got Forced To Do Impressions by an Egyptian God Tesa's Spirited Away Adventure: Picture Book Edition!
Absent Absent Absent Appears Absent Absent
Tesa Answers Over 30 Questions at Super Speed! "Invincible Rainbow Arrow" Dance feat. Mizuki, Ota, and...White Horse Woman?! Sneak Peek at AI: THE SOMNIUM FILES LE/Day One Edition! You Won't Believe the Friend I Just Made! Graduation A-set's AI: THE SOMNIUM FILES Exclusive Launch Day Let's Play
Absent Absent Absent Absent Absent Appears
AI: THE SOMNIUM FILES Let's Play Part 2! Ota is here!!!
Absent

Gallery[edit | edit source]

Trivia[edit | edit source]

Etymology[edit | edit source]

  • The name AI-Ball is a pun on the word "eyeball" (which references her role as Kaname Date's eye) and the term A.I. (as she is an artificial intelligence). The english nickname Aiba seems to just be a shortened version of that name.
    • The Japanese version of her nickname, Aibo (アイボ) can be read as Aibō (相棒), which is police slang for "partner", referencing her role as Kaname Date's partner. Date even calls her his (相棒) in the Japanese version of the game.

General[edit | edit source]

  • Aiba and Kaname Date were both the first characters introduced for this game, appearing in the announcement trailer. However, Aiba remained unnamed and her role never directly addressed for several months until interviews released after the second trailer, leading to much speculation about her role in the story until then.
  • Kotaro Uchikoshi's concept for an artificial intelligence residing in an artificial eye was inspired by the manga series Goku Midnight Eye, in which a detective gains a cybernetic eye that can assist him in investigations.[1]
    • When pitching the character to the designer Yūsuke Kozaki, Uchikoshi imagined Aiba to look similar to the character Medama-Oyaji from the manga and animated series GeGeGe no Kitarō.[1] Medama-Oyaji is a tiny bipedal creature with human-looking flesh, but contains a giant eye-ball as his entire head. Uchikoshi was surprised when, instead of the frightening-looking humanoid, he instead received a cute animal design.[2]
    • The animal design planned for Aiba was originally meant to be a frog. It was since changed to a hamster.[3]
  • According to an interview with Siliconera, Aiba is Assistant Director Akira Okada's favorite character in the game.
  • In a fan-made Character Poll for AI: The Somnium Files held on Twitter, Aiba came in 2nd place.
  • Her favorite number is 41205. When using a letter-number cipher to decode it, it translates to "DATE."

Navigation[edit | edit source]

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 DateAI-Ball/AibaIris 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 MatsushitaMizukiKotaro UchikoshiFluerichajiWhite Horse WomanBloody Polar Bear
Renju OkiuraHitomi SaganMayumi MatsushitaMama****** ****AI-BallBossPewterYūsuke 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!!!

References[edit | edit source]

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