|“Wisdom comes from many places, but comes in spades with mistakes. We make them, and if fortunate, we learn from them. That is all wisdom is: being wise enough not to make the same mistakes twice.”|
- Her name is a pun on the word "mistake."
- In her first appearance, there was a child with her when Wu came to purchase Traveler's Tea. It is unknown if the child is a neighbor she was babysitting or someone who just worked at her shop.
- As she was one of the Oni who followed the First Spinjitzu Master, she was one of the oldest characters in the series, being thousands of years old.
- It is unknown why she had not used her powers prior to Hunted to help the Ninja, since she was an Oni. It is possible that she would have been discriminated by others if she had revealed herself to the public.
- Oddly, her tea shop was rebuilt after the Oni Invasion, even though she is deceased.
- Main article: Mystake/Gallery
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