Hogwarts: the Witch's Guide

[An anti-routine article, I came from time travel and knew the plot of the original work, but I accidentally became someone else's golden finger. In Borgin and Burke's shop in Knockturn Alley, Mr. Karacus Burke looked at me as if he were looking at a bad debt that would never be recovered. My name is Theodore Nott, my parents were imprisoned in Azkaban, I have low magic power and no system. Belongs to the most useless group among time travellers. While I was thinking about the timeline I traveled through... I received an owl message. During the sorting ceremony, I saw the Boy-Who-Lived... The red-haired Ron, and "Know-It-All" Hermione. Just when I couldn't restrain myself from telling everyone's house—— A girl named Daphne Greengrass heard everything. She never had any lines in the original novel. But at this moment, she was staring at me like a customer in Knockturn Alley looking at a mispriced dangerous item.