She was first seen dancing in one of the bar's glass cages, and then later served refreshments to Jack and The Canine Archaeologists. She overheard Jack vowing to defeat Aku and agreeing to help the dogs. After they left the bar, the displeased waitress told her boss she's taking a break. Unbeknownst to most, she mainly serves as a spy for Aku, and went to his lair to inform him about Jack's arrival to the future.
It is unknown how the past Aku's destruction affected her existence.