Project: Xia is a secret project created by the late Sinister. He used his own DNA combined with his former spouse's DNA to create her, and throughout her childhood put her through rigorous training and tests, and now she's the ultimate superhuman. Due to her being raised closed off from the outside world, she displays many odd mannerisms that occasionally frighten others, such as licking dirty Chao and believing that Pinky was presented to her as her groom.


  • Xia was named after Sia Sapphire.
  • She takes a somewhat motherly attitude toward Chao. Ironically, when trying to seduce Pinky, she tends to use some vulgar jokes, which is also surprising as to how she would know them.

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