I Was Banned for a Thousand Years at the Beginning. My Brother Is a Gryffindor?

The social animal Chen Wu died unexpectedly and traveled to the Harry Potter world. The good news is that he did so. The bad news is that Elaine Gryffindor, who traveled thousands of years ago and became the biological brother of Godric Gryffindor, the founder of Hogwarts, was sealed on an isolated island by the Four Giants for a thousand years and became a "living history book". This is not a punishment, but to fight against the dark side of the magic world, which is deeply hidden behind the scenes. Elaine has high hopes from the four people, and she slowly accumulates unfathomable magic power at the cost of sealing it for thousands of years, becoming the only hope for the future. Now, the seal was lifted and he finally saw the light of day again, only to find that the main storyline of Harry Potter had already begun. However, after being sealed for thousands of years, the memory of the plot of the original work has long been blurred. So when the living brother of the founder of Hogwarts comes to the modern wizarding world with thousands of years of secrets and ancient and powerful magic, how will those familiar plots be subverted? How will the ancient soul of Gryffindor bloom in the new era and fight against the real threat that has been hidden for thousands of years?