You all know the story of the worlds savior Harry Potter. Perfect Harry Potter, nothing of the twin, Kaine. Somehow, James Potter managed to live that dreadful night, unknowing to the fact that a piece of shattered wood is what caused the famous lightning scar, not the killing curse, No, that struck Kaine, creating a black snake in the middle of his chest. The Potter parent, knowing Harry's fame would surely affect Kaine, changed his last name to Evans, sent him to live with the wretched Dursleys, a wizard hating family, not that the Potter knew. Luckily the Dursleys quickly learned not to mess with Kaine Evans.
Your name is Y/n Potter. You are Harry's Twin sister and you are the girl who lived. You were with Harry, the boy who lived, when Voldy attacked and so therefore, both you and Harry have a scar. For some reason, your scar is different to Harry's, and you're not sure why. You are also obsessed with rock music, and you're often humming to yourself.
In this story, you live your life through Hogwarts although some of the bad things from Harry Potter don't happen because it doesn't work relationship wise.
You try to go against Harry, but two boys stop you. Also, all smut happens at age appropriate times, some kids do this stuff at younger ages anyway when they shouldn't.
(I know this kind of relationship isn't acceptable in real life, but it is now.)
TW: there is sexual content and swearing in this story.