Set far in the future, this sci-fi novella follows a researcher from an extra-terrestrial human settlement on a scientific tourist trip back to "Old Earth". A misunderstanding leads to her accepting a very large bet on the outcome of a mecha battled, and when she losses and can't pay, she has to team up with a mecha fighter to try and win the next round to get her money back. I was able to predict the majority of the twists of this story within the first quarter of the book, but it was still fairly entertaining as a short audiobook listen.