AI: The Somnium Files Wiki
AI: The Somnium Files Wiki

How did you all spend your long weekend? I wanted to go to the beach! Head up to the mountains! But...

I stayed home and played video games instead! Sorry! But next week is going to be really exciting, I promise! I get to play AI: THE SOMNIUM FILES!!! Stay tuned! ✌️✨


"My 10-Day Vacation Diary" is one/some of the videos released for the Lemniscate channels. It's considered the 9th A-set video in the series, and the 15th video overall.

The video in Japanese is titled 【絵日記】10連休の思いで【あせとん】 ([Enikki] 10 renkyū no omoi de [aseton]) and in Chinese it is titled 【中文字幕】【繪圖日記】10連假的正確過法【賽特兒】([Zhōngwén zìmù][huìtú rìjì]10 lián jiǎ de zhèngquèguò fǎ [sài tè ér]).


The video starts with A-set giving her usua— actually, it doesn't start with her usual intro. Instead, the camera rolls through what is supposed to be her intro at her home while A-set is off-screen humming her jingle.

After more than 20 seconds, text appears on screen to replace A-set's narration, as it explains how this week is Golden Week, and how all that A-set did during her vacation is play video games. The text explains how Golden Week is an "Evil long weekend that makes you spend money."

Cute drawings appear on screen as the text explains how A-set wanted to go to the ocean or to go up the mountains. But when stating on why A-set couldn't do so, the text explains that it's not because of laziness, but because she has actually been busy with work. And by work, she meant that she stayed in playing video games — Zanki Zero: Last Beginning in the English video, Crypt of the Necrodancer on the Japanese/Chinese videos. The Zanki Zero gameplay shows A-set with a team with Zen, Minamo, Mamoru, and Yuma as they beat monsters at the same Hot Springs location as the video two weeks prior. The Necrodancer gameplay shows [TO BE ADDED]

As A-set keeps playing, the text asks the audience how they spent their weekend, before deciding to end the video. After this, A-set finally pops up into frame, revealing that she plans on having an actual video ready for next week, another Let's Play video of an unreleased video game called AI: THE SOMNIUM FILES. A-set reveals her excitement for providing world premiere footage of the game, as no one has gotten their hands on it yet. And with that, she gives off her usual outro for her videos before ending it.

New Information Learned[]

  • A-set spent Golden Week playing video games for 10 days straight.
  • A-set (or perhaps just her editor) has a negative opinion of Golden Week.
  • A-set wanted to go to the ocean or the mountains during the break, but she insisted that she couldn't because of "work."
  • She played Zanki Zero Last Beginning in the English video and Crypt of the Necrodancer in the Japanese/Chinese videos.
  • A-set plans on premiering gameplay footage of AI: THE SOMNIUM FILES to the world for the following video.


Characters Featured[]

  • A-set
  • The disembodied text picking up for the slacking A-set during the video

Locations Featured[]


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

  • English version
  • Japanese version
  • Japanese version w/ Chinese subtitles

My 10-Day Vacation Diary






  • A-set claims that playing video games is part of her work (and the reason she couldn't go outside for the break), but it's more likely that she was simply just lazy and lying about it.
  • This video is set during Golden Week, usually set at the beginning of May. Despite this, A-set insisted two videos ago that she had just recently returned from GDC 2019, which took place in mid-March. There's no explanation given by A-set on the time disparity.


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!!!