AI: The Somnium Files Wiki
AI: The Somnium Files Wiki
For the video released simultaneously with this video, see You Won't Believe the Friend I Just Made!
For other uses of the term A-set, see A-set (disambiguation)


"A-set" is one/some of the videos released for the Lemniscate channels. It was released as [Unlisted] alongside the video "You Won't Believe the Friend I Just Made!" as a companion video, with the link hidden as a QR code within that video itself.

The video in Japanese is titled あせとん (Aseton) and in Chinese it is 賽特兒 (Sài tè ér).


The QR Code[]

On June 26th, A-set uploaded a video online titled "You Won't Believe the Friend I Just Made!" Much like her many videos, this one seemed rather harmless in tone (despite the strange content), and acts as a normal video. Click the link above for all the details about that video.

However, on the last frame of that video, a QR code appears on the picture frame hanging behind A-set at her home. Scanning the code takes one directly to this video, which remains Unlisted on the YouTube channel.

The Secret Video[]

The video begins with a Somnium dive as the screen appears to dive into the dreams of someone. However, instead of showing anything live, neon text appears on screen, saying "WHY DREAMS DIE?" Once A-set begins talking, the letters on the phrase start shifting around, with the neon lights changing from pink to purple and also to red.

With that, A-set begins her usual intro to her videos, as if nothing seems out of the ordinary. She thanks all of her viewers for watching her videos up to this point, but she leaves off with an announcement: she has decided to make the following video next week to be the last video on her channel. She wanted to give a special message to everyone who managed to find this particular video, calling them out as incredible for their quick work in locating it. She reveals that the reason she's stopping her videos is because, after playing AI: THE SOMNIUM FILES in her video "AI: THE SOMNIUM FILES Let's Play! Detective Tesa!", she has finished playing the entire game from start to finish, and through her playthrough, she discovered many secrets about her reality. She learned secrets about "Iris Sagan" (stated in third-person), about the Psync System, about the Somnium world, about Renju Okiura, and about Kaname Date. Yet, despite these revelations, she can't tell the audience the truth, and she confides that Kotaro Uchikoshi can't reveal this either. She insists that, to learn about the truth, YOU need to see it for yourself, find an answer to the many questions, which leads to her, A-set.

With this, A-set tells her audience that she looks forward to seeing them again, stating that, despite the final video, this won't be a true goodbye forever. And so, A-set gives out her usual cheery outro for her videos, despite the finality of this one, and so the video ends.

New Information Learned[]

  • The video opens with a Somnium dive within the Psync System.
  • The text "WHY DREAMS DIE?" appears on screen before being shuffled around.
  • The following video will be the last video in the Lemniscate YouTube series.
  • A-set intentionally created and hid this video in her channel, and in her video "You Won't Believe the Friend I Just Made!"
  • Since May 15th until June 26th, A-set has spent her time playing AI: THE SOMNIUM FILES.
  • She is ending her videos because of all the secrets she learned about the game.
  • The many topics for which she has learned the truth of include:
  • A-set and Kotaro Uchikoshi refuse to reveal the secrets behind the game.
  • The truth of AI: THE SOMNIUM FILES is directly connected to A-set, which she encourages her fans to pursue.
  • A-set will be waiting for us to meet her again in the future.

Characters Featured[]


The three different videos for this episode are found below, in this order:

  • English version
  • Japanese version
  • Japanese version w/ Chinese subtitles
A-set あせとん 賽特兒


  • This is the only Unlisted video released on the Lemniscate channel, and the second video released alongside a main video, the previous one being "Invincible Rainbow Arrow" alongside "Uchikoshi Introduces Net Idol A-set!"
  • The description of the video, "margana", is an anagram of the word "anagram", which suggests that anagrams should be applied to the video, particularly the phrase "WHY DREAMS DIE?"
    • The most likely anagram that can stem from this phrase is "WHERE IS MY DAD?", hinting at A-set missing a father-figure in her life. During the video, when the letters are shuffled, one of the phrases it makes is "WHE REISMY DAD?", which essentially confirms this anagram answer while sticking to the original phrase's character set.
    • Other potentially theorized anagrams includes:
      • I SAWED MY HERD?
      • SAW DYE HIM RED?
Major AI: THE SOMNIUM FILES spoilers here!
  • The truths that A-set mentions learning about as she played AI: THE SOMNIUM FILES are most likely:
    • Iris Sagan: A-set most likely learned that Hitomi Sagan is not her real mother, as she was adopted soon after her biological mother, Manaka Iwai, gave birth to her, met with Iris's biological father, So Sejima, and was murdered by Iris's half-brother, Saito Sejima. It's also possible that she learned about her own potential future death, as she is either killed by Saito (while as a parasite inside Renju Okiura) or succumbing to her brain tumor.
    • Psync System and Somnia worlds: A-set most likely learned about the various functions of the Psync System, in particular Parasitism, the ability to swap ego-algorithms between host bodies, essentially acting as a form of body-swapping. It's unclear what A-set learned about the Somnia worlds, but perhaps it could be about her own Somnia, PSYNCIN' IN THE MaiN: 1, and how the concept of the Secret Society NAIXATLOZ is most likely a delusion in her mind.
    • Renju Okiura: A-set potentially learned either about Renju's past or his future fate, although the latter is potentially avoidable from her perspective. The game expands on Renju's life as an associate to the Kumakura Family, the death of Iris's mother, Manaka, and the scandal behind Lemniscate. It could also be in reference to his relationship with Mizuki Okiura and Shoko Nadami.
    • Kaname Date: A-set most likely learned the truth about Kaname Date's past as "Uncle" and Falco, real name Hayato Yagyu. Yagyu's past is explored in detail, as a detective who defected into a vigilante murderer, and later an assassin for the Kumakura Family. Despite this, he began dating Hitomi and became Iris's father figure for 3 months, before a series of events led to Yagyu becoming a parasite in the body of Saito Sejima, receiving amnesia, and being renamed as "Kaname Date." A-set has spent 6 years looking for her Uncle, and eventually found the truth via her playthrough of AI: THE SOMNIUM FILES.


Lemniscate YouTube Series
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
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
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
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
LemniscateSpike ChunsoftSecret Society NAIXATLOZGame Developers ConferenceSunfish PocketMarbleTokyo Metropolitan Police Department (Advanced Brain Investigation Squad) • Anime Expo
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
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!!!