Hogwarts, My Sister Is Hermione

Traveling through the world of Harry Potter, he became Hermione's twin brother. Originally, Louis only wanted to hug the thigh of his sister, the future Minister of Magic. But at this moment, the system rune system appeared. He can use his magic to carve runes! The carved runes can also be engraved on various armors and wands! So, when Voldemort returned and the entire magical world was panicked, everyone discovered. There is an additional "Rune Item Shop" in Diagon Alley. Voldemort: "What the hell? Why can't even a common wizard kill Avada Kedavra?" Louis: "Of course it's because of the blessing of defensive runes! The cloak is engraved with level 5 defensive runes! For only 1999 Galleons, you can take home a cloak that can withstand three times of the Death Curse among the three Unforgivable Curses! Of course, if you are short on money, there are also protective gears blessed with low-level defensive runes. What are you waiting for? Buy now! " When the news came out, the entire magic world went crazy! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.