Traveling Through HP: My Golden Finger Is the Check-In System

[Eagle Academy+HE+Genius Setting] Time travel became a little baby. At first, Yvette thought it was just an ordinary time travel. No? Who can tell her why her neighbors are the Dursleys? Looking at the young Harry and Dudley pushing each other next to them. Only then did Yvette realize that she had traveled to the magical world! At the same time, time travelers must have a golden finger to check in. There is an incomplete sign-in system, and you can get various items by signing in! [Sign-in is completed, congratulations on getting: Magic Activation Card! [Congratulations on getting: a small piece of cake! [Congratulations on getting: Ancient Magic Fragments] Congratulations on getting: Gringotts Vault No. 608 Key! …….. When the gears of cause and effect slowly turned, a girl who had insight into everyone's future appeared in the magical world, and the obsession in her heart continued to guide her to make changes. Where will the future go... —— [Note: It is the first time for the original heroine × Draco to write a fan novel. I want to write something different, and may be a bit imaginative. The main plot will be interspersed with the timeline of the original work, but basically it will be based on content outside the magical world of the original work.