When Daphne Watts starts get back into Yu-Gi-Oh after a long absence, she believed that she was going to play a few matches a week at her local card store as a hobby. She certainly wasn't expecting to be launched from the real world into the anime world of Yu-Gi-Oh. Will she try not to change anything or will she try to help Yugi and his friends by changing the timeline.

As a Slytherin there are certain unofficial rules that you are supposed to follow. Rule Number 1: You're not supposed to show emotions, as that can show weakness. Rule Number 2: You're supposed to be independent, as others may try to manipulate you. But most importantly... Rule Number 3: You are not supposed to be muggleborn.