It's possible that:
* These are fictional names: You might be referring to a story, game, or other creative work.
* These are Māori words with a specific meaning: If you can provide more context about what "Mukukai" and "Tukorehe" represent, I might be able to help you find more information.
To help me understand, could you please provide:
* The source of these terms: Where did you encounter them (e.g., a book, a website, a game)?
* What is the context?: What is the overall story or theme associated with these terms?
With more information, I may be able to find relevant information or interpret their significance.