Hogwarts: My Magic Was Too Strong

My second life began not with a gentle welcome, but with a destructive magical cry that ripped through St. Mungo's. Reborn into the very heart of the wizarding world, my power wasn't just immense; it was a rampaging storm, shattering wards and devastating everything in its path. For five agonizing years, I was effectively a prisoner in my own highly fortified bedroom, a walking magical disaster contained only by the most powerful enchantments and my family's desperate efforts. But a soul from another world doesn't stay caged. Trapped, I channeled my adult intellect, tirelessly wrestling with the raw, untamed power that surged through me, forging it from a curse into a precise weapon. Every devastating outburst became a lesson, every broken wall a step towards mastery. I am not a boy with magic; I am magic itself, finally bending to my will. Now, the castle walls can no longer hold me. My power is finally my own, ready to be unleashed into a wizarding world simmering with forgotten darkness and a war brewing beneath the surface. Yet, my first step out reveals a new, unexpected vulnerability: a younger sister whose innocent smile ignites a protective fire, making me realize she might just need the protection of an overpowered, once-imprisoned wizard more than anyone else.