Hogwarts: I am Harry's eldest cousin

Became Harry's eldest cousin, and the original author designated him as a Muggle.
Xun Ge'er said it well: "When Merlin closes a door for you, he will open a window for you."
After acquiring a strange wizard system... Merlin opened a skylight above Dudley's head... Well, maybe Merlin blew the roof off Dudley's house.
Dudley Dursley: "Listen to me, it's not what you think, I'm really a spellcaster!"
Under the moonlight, Dudley twisted his waist and made a strange pose. A background music sounded behind him: "Okay, I'm going to be frank. I admit that wizards have their limits, so I won't be a wizard anymore! Potter!"
"System, if you continue like this I will have to learn the 72 transformations and become a Super Saiyan."
This book is also known as "The God of Physics", "Everything Except Magic", "Actually I Can Do Magic", and "I'm Really Not Harry Melling".
There are already three completed works with one million words and one completed work with two million words. We guarantee it, so please feel free to collect it.