A-set (impostor)

*For other uses of the term **A-set**, see A-set (disambiguation)*
*For the truth about the impostor, see here.*

## The A-set impostor

 \*A-set* Tesa
* B-set (unofficially by fans)

> "*Good evening, good morning, and welcome! It's the brand-new star of the net world, A-set, also known as Tesa!"*
> *-A-set's imposter's video introductions, pretending to be A-set*
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An impostor of **Iris Sagan**, who also goes by the names **A-set** and **Tesa**, is the deuteragonist of the Lemniscate YouTube video series.

The A-set impostor is a mysterious figure that starred in 4 videos in the Lemniscate channel, from "A-set's GDC All-Access Convention Report!" to "This Is Your Idol." She is similar to Iris in nearly every way, but has small discrepancies from the original.

The impostor's true nature is revealed in *AI: THE SOMNIUM FILES*. For a full spoiler explanation, see here.

## Design

The impostor's appearance is identical to that of Iris Sagan. The entire description can also be found here, but it shall be rewritten here for posterity:

*Iris was an 18 year old high school girl, officially measuring around 157 cm tall. She had short pink hair, with two short ponytails landing on her shoulders, and both her eyes were a light blue color.*
*Her outfit, designed by Yūsuke Kozaki, consists of a long sleeve t-shirt, a two-layered branded sweater, a waist pack, blue socks on pink heels, and a cat-themed headset. Her t-shirt is white while her long sleeves are blue. Her button-up sweater is light blue with long sleeves that reach her hands, which has holes for her hand to wrap around the edge of the sleeve. Her pink-with-white-streaks jacket is custom made to have the "A" of her A-set logo on the back and the left breast side. Her waist pack is cat-theme designed, stylized as a yellow and blue cat face, which she wears as a belt around her waist, the pack itself being placed behind her. Her futuristic-looking headgear has two cat ears that pop off the top of her head; any features that the headgear may have are currently unknown.*
## Personality

> *This section is a stub. Expansion needed.*
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The personality of A-set's impostor seems to be very similar to the original's personality, being rather perky and excited in her online presence. However, this version of A-set seems more soft-spoken at times, especially when she delves into insecurities and unclear factors in her life.

She also seems to have a more hyper obsession with her producer Kotaro Uchikoshi than the original ever did previously, where she would normally think of him as an intimidating and weird figure. This time around, she constantly talks about how "cute" Uchikoshi is, posting various images and videos of his time at GDC, such as losing his phone on the way to the hotel. These images and videos are rather odd in themselves, as Uchikoshi himself testifies not spending time with A-set at GDC and never losing his phone during his trip, which puts to doubt the nature of these images and how this version of A-set acquired them in the first place.

## Story

### Disappearance and Replacement

On March 12th, 2019, Iris Sagan disappeared on her way to the airport for her flight to San Francisco. Iris's friend and her producer, Ota Matsushita and Kotaro Uchikoshi, both began looking into the sudden mystery in her disappearance, the former in Tokyo and the latter in San Francisco while attending the Game Developers Conference. On March 20th, a video titled "rw nw prt m hrw" appears on A-set's YouTube channel, showcasing the events that were to come in November 4th, 2019: a person dressed in a Polar Bear suit has Iris restrained on a table and with a missing eye, turning on an ice-cutting machine that sliced Iris's body in half.

However, at the same time, Uchikoshi had claimed that he could not find the video online on her channel, stating that the last upload was the video "6". Later that evening, Uchikoshi claimed to have seen Iris herself (or rather, her impostor) roaming around the halls of the Moscone Convention Center for GDC. During her time at the convention, the impostor hangs out with Uchikoshi at the Spike Chunsoft booths, filming and taking pictures all around with them, events that Uchikoshi claimed he couldn't recall and never occurred.

A week after GDC, this A-set flew over to Tokyo, claiming she still had jetlag from her flight. Not long after, she posted a brand new video online, A-set's GDC All-Access Convention Report!, where she posted images and video footage of her time at the convention, acting as if there had been no videos in the last two weeks since the A-set Reservations Unknown special. Ota, worried over Iris's wellbeing and having not seen her in weeks, went over to her place the following day and met up with the A-set residing at home, believing her to be the true Iris and dismissing all odd behavior and inconsistencies as part of her jetlag from her way back. From then on, A-set begins prepping a "big" "performance soon."

### Visit to ABIS

In early April, the A-set imposter, along with Kotaro Uchikoshi, visited Tokyo Police Headquarters and entered Boss's Office. After a brief introduction of ABIS, she commented that the people who work on the squad, who don't even look like police officers. The A-set imposter also mentioned how recording is technically prohibited in the office, but that she and Uchikoshi are working it out with ABIS. Next, she briefly introduced Boss, the censored Date, Pewter and Aiba, with some of her comments included. She noted that Date's personality was "disappointing", although it was never explicitly made clear how so. She also praised Date's good looks, such as his posture, hair, and body. When admiring his eyes, The A-set imposter noted that both eyes are of different colors, and assumed that one was a fake. She also revealed that Date lost his memories 6 years ago, but he's unclear on the circumstances.

Finishing the introductions, the A-set imposter declared that ABIS was a crazy place, and talked about the Psync Machine that can sneak into other's dreams, which was known as the Psync. Then, Uchikoshi ordered her to have an experience on it. Despite her initial refusal, the A-set imposter eventually complied.

### Imposter's Troubled Mind

The A-set imposter successfully established a connection on Psync Machine, thanks to "Uchi's expert negotiation tactics" helped her get an exclusive scoop of the system. She told the offscreen Pewter to "do what must be done" as if she must endure some horrible experience.

She entered a certain one's Somnium, inspected the surrounding unnatural objects, and found another Iris in action here, a machine-generated model of her. She quickly rotated the head of a panda-shaped kid's ride at the amusement park, sending the merry-go-around spinning with insane speed; she then entered a booth and slammed a birdcage to release the balloons inside, blowing the last balloon to exaggeratedly large. Once back outside the amusement park, the A-set imposter tried the other rides in the end.

### Reveal and Disappearance

On April 17th, 2019, after experiencing the previous Somnium, still using identity of A-set recording in the Sagan Residence, the imposter participated in her last video, and expressed that she would share her own Somnium content with the audience.

The content of Somnium was presented in two sections, one was partial snapshots from an unknown factory, and the other part was an incident that happened in the Okutama Mountains. Among the content she presented, there were several kid's drawings of animal killing, a dragon statue that appeared in Kumakura Office, an eyeball removed from a certain human's socket, and so on. Finally, the Somnium view ended with the main perspective of the Okutama Mountains section being pushed into a deep hole.

After the screening, static disrupted the audio, and the imposter taunted the audience with a cold expression about whether they understood her true identity, before repeating her so-called identity "the brand new star of the net world A-set, also known as Tesa," and finally threw out with words "be seeing you" to end the video.

## Trivia

* A common nickname used for the impostor by fans of the series is **B-set**, in reference to the A-set name and its succession in the alphabet.
* There are various aspects of the impostor's videos that shows the differences between her videos and the original A-set's videos:
	+ A-set's normal introduction to her videos "*Good evening, good morning, and **hello**! It's the brand-new star of the net world, **Tesa**, also known as **A-set, you bet!***" are changed to "*Good evening, good morning, and **welcome**! It's the brand-new star of the net world, **A-set**, also known as **Tesa!***"
		- To continue off this, she seems to address herself as Tesa more than A-set, especially in the video descriptions and how it compares to the original's videos.
	+ A-set's normal outro for her videos, "*...so **keep your eyes open** and **stay tuned**. **Unless I get abducted or something***," is changed to "*...so **stay tuned** and **keep your eyes open***," and the following section, "***If you don't subscribe,** you'll make me so aggro!*" is changed to "***You better subscribe, or** you'll make me so aggro!*"
	+ Similarly, Aseton's normal introduction to her videos, "おはようの人もこにちわの人も**こんばんわ**! **ネット界**の揮発性溶媒, あせとんことA-setです!" (Ohayou no hito mo, konnichiwa no hito mo, **konbanwa**! **Netto kai** no kihatsusei youbai, Aseton koto... A-set desu!) are changed to "おはようの人もこにちわの人も**こんばんわの人もよこそう**! **みんな**の揮発性溶媒, あせとんことA-setです!" (Ohayou no hito mo, konnichiwa no hito mo, **konbanwa no hito mo, yokosou**! **Minna** no kihatsusei youbai, Aseton koto... A-set desu!)
	+ Her standard handsing when she says "*See ya!*" and end her videos is completely different, swapping hand positions and combining them together.
	+ Her attitude is less outspoken, sometimes talking so low the music track overpowers her voice as she talks about her worries, such as her introvert-ness and mental state.
	+ She spends a lot more time associating with Kotaro Uchikoshi, either talking about him in infatuation or traveling with him to record her videos, seemingly being physically present with him. This is in stark comparison to the original's videos, where A-set would mention Uchikoshi but have minimal interactions, and never actually spend time together.
	+ Her editing choices have changed, in particularly in regards to the color of her text being written in magenta instead of pink.
	+ On To-Witter, she no longer fills her tweets with different assortments of emojis (the cartoon icons), instead they're decorated with emoticons (faces created from keyboard characters and occasionally japanese text).
		- Additionally, the To-Witter account had to-weeted strange lyrics to various progressive metal music in the middle of some nights, only for each to be deleted a few hours later.

## Navigation

To-Witter Archives Aseton: Main Page • Aseton Plays Danganronpa • Revisiting the YouTube series • Tokyo Game Show & AI Launch Day • Aseton Zero Escape • Aseton Terraria Pioneer • Crypt of Aseton • Aseton of Hyrule • Indivisible Aseton
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A-set To-Witter (English) • A-set To-Witter (Japanese) • a\_set\_on Weibo (Chinese) • Mato To-Witter • Kotaro Uchikoshi Eng To-Witter • Fluerichaji To-Witter