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Eureka X49, also called Yurika Shiki, is an independent English-language VTuber. She streams primarily on YouTube.

Introduction Video[]

【Eureka_四九ゆりか】YOrika!_ヨりか!【新人vtuber-ENvtuber】

【Eureka 四九ゆりか】YOrika! ヨりか!【新人vtuber-ENvtuber】

Eureka's introduction.

Personality[]

Eureka speaks with a British accent.

Appearance[]

Eureka has silver hair with an ahoge and single light yellow streak in her bangs with green and yellow eyes, with piercings and a blue bandage on her cheek. She wears has a black and yellow zipped-up jacket with a bare midriff. She has a QR code on her leg. Her charm point is her fang.[1]

History[]

Background[]

Eureka first revealed her original 3D model on 2 September 2020 and uploaded introduction video on 9 September 2020. She made her debut stream on 18 September 2020.

2020[]

Eureka announced that she had reached her first YouTube 100 subscribers on 22 November.

2021[]

Eureka reached 500 YouTube subscribers on 6 April.[2]

Around 3 August 2021, she reached 1,000 YouTube subscribers.

On 11 September, Eureka held a re-debut stream to reveal her Live2D model. It was attended by 69 viewers.

2022[]

On 1 January, Eureka revealed a new pixel model by Poribaketsu. She also announced a Minecraft server.

On 31 May, Eureka announced a hiatus, followed by a karaoke stream on 3 June. She planned to return for her birthday on 3 July.[3]

2023[]

On 15 January, Eureka reached 2,000 YouTube subscribers in an endurance karaoke stream.

Fans[]

  • Eureka's fans are known as "Mandem",[4] "Lab Rats", or "Rekadan".

Quotes[]

  • "Everyone is my mandem, innit?"
  • "Why do you want to be normal when you could be extraordinary?"
  • "This is my nub cup"
  • "KSKSKASDSLAS STOP"
  • "i only say seiso things"
  • "im not horny im curious"
  • "GOOD MOREKAAAAA!"

Trivia[]

Name[]

  • Eureka's name is written various ways:
    • Her surname is written X49 (for Experiment #49) or 四九 (kanji for 49), read Shiki.
    • Her given name is Eureka or ゆりか, read Yurika.
    • Her full name is variously written in English and Japanese order: Eureka X49, X49 Eureka, Yurika Shiki, and Shiki Yurika.

Lore[]

  • Eureka is the 49th in a series of artificial lifeforms created by the Professor as part of Project: Eureka. The first 48 were destroyed.
  • Eureka is a genetically modified human. She was originally a digital creation, but acquired a human body.
  • Eureka does not know where she lives, because she has never been outside.
  • Her tail is a power cord and plugs into her spine. It is USB-A.
    • Her tail can use various attachments, including a microphone for karaoke and a box cutter for building plastic model kits.
  • Eureka wears fingerless gloves to improve her magic defense.
  • She is part of the Martian Assassination Association, or "MAss Ass". She often takes breaks to attend assassin training on Mars.

Likes and dislikes[]

  • Eureka's favorite color is yellow[1] blue.[5]
  • She loves the anime Mobile Suit Gundam 00.
  • She loves Saji Crossroad Setsuna F. Seiei.
  • She hates Saji Crossroad.
  • Her favorite train is the Ginza line, because it looks like pudding.
  • Eureka's favorite food is cookies. Her favorite drink is water coolant.[1]
  • Eureka likes underground idols, anime (especially by Kyoani), games (MMORPG, Pokémon, and FPS), martial arts, and sweets. She dislikes mornings.[6]
  • She likes the Pokémon Toxel, martial arts, and sugar.
  • Eureka's goals are to get a Live2D model, do a 3D model idol live, and to get good at FPS games.[6]
    • She acquired her Live2D model 11 September 2021. She has never gotten good at FPS games.
  • At her Live2D re-debut, she announced new goals to speak better Japanese, get "STRONK", start a Eurekaland community Minecraft server, become a robot, and maybe become an idol.
    • She established the Eurekaland Minecraft server on 1 January 2022.
  • Her fears are dolls, clowns, and turning into pizza.

Miscellaneous[]

  • She has a brother complex.
  • She tends to oversleep.
  • She speaks in a Martian accent that is curiously close to a British accent.

External Links[]

Media[]

Twitter hashtags[]

References[]

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