Operator trivia: U-Official

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Trivia

• Eureka's introduction as U-Official is likely an appreciation to her popularity in the Arknights community.
  • The joke was later elaborated further by Hai Mao who makes an in-game cameo on the good ending of The Ultimate Beautiful Girl, claiming that she is controlled by a higher entity (i.e. Hypergryph and Hai Mao himself as the producer of Arknights).
  • Because Eureka only makes a brief appearance in the Global server, many players who exclusively followed Global are unaware about the aforementioned.
• U-Official has the traits of a hamster (subfamily Cricetinae) which is shown by various chibi hamsters in her artwork.
• Eureka has been jokingly nicknamed "the Walking Humanoid Catastrophe" by the Arknights community which is not only based on her unluckiness in the story, but also events in the real world.
  • Originally as a warm-up event for the 2022 Ambience Synesthesia, Hypergryph was about to hold the first offline festival event in Guangzhou scheduled to be held on mid-October, and the event's ticket could be pre-booked on September 1. It was promoted by Eureka through a special event PV. However, three days after the opening for pre-booking, the COVID-19 pandemic movement control in Guangzhou was suddenly tightened, and the event was forced to be cancelled. As a matter of fact, many joked that this was because of Eureka taking the role of hosting the PV, hence bringing such a bad luck even in real life.
  • In April 2, 2024, the JP and KR servers had an emergency maintenance to rectify login issues on the former and issues in the resource downloading process on the latter, further cementing her notoriety.
  • What's more, the EN server also had an emergency maintenance on March 27, 2024 to fix a server-side issue which causes all EN players' friend list to be purged; U-Official's assets have already been added to Global's game files in the Come Catastrophes or Wakes of Vultures update and she is actually present in La Pluma's Paradox Simulation.
• U-Official's profession as a Btuber is derived from YouTuber and VTuber.
  • Her English CV, LilyPichu, is a well-known livestreamer and content creator, mirroring U-Official.
• Eureka's birthdate of January 4 can actually be rewritten as April 1, the date of the April Fool.
• U-Official's file number of U007 is obviously a satire to the notorious and illegal 007 working hour system: a system where one must work for 24/7 restlessly.
• A Duck Lord plush toy on her side and a carpet with the face of Gopnik beneath her chair can be seen in U-Official's artwork.
• U-Official is the fastest Operator to receive her own merchandise in a single day after her release. Normally, it would take a week or two for any new operators to get their own merchandise.
  • However, the merchandise was released alongside an April Fool joke. The original price was around RMB99.00, but the price listed on their CHOEARTH store was RMB9.90 instead. CHOSHAN later temporarily removed it from the store for correction and issued an apology statement with the joke that they had "fired" the staff handling it who is actually implied to be Eureka.