Yidrea looks very similar to her sister except for the black tips of her hair and a circular notch in her right ear.
502 years ago, Blue and/or Yorin defeated Yidrea. As a result of her defeat, she was unable to do anything for 500 years, and when those 500 years passed, she returned to the universe. She immediately found and recruited her old ally Karrasaliss to cause more trouble for Blue. When Blue found out about this, she, Sheba, Sirenla, and Stelladi used The Place That Wasn't There Yesterday to get to Yorin's place. Blue asked Yorin if he had any information on Karrasaliss and Yidrea's current whereabouts, but he did not.
- Yidrea never actually appeared in the pages of BZPB; she was only mentioned as existing by other characters.
- Yidrea originally appeared in the 'Secret Blood' comment RP on deviantArt.
- Yidrea's themesong is Divide, by Disturbed.
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