Mattheo and y/n have been enemies ever since first year when they met. She’s the cousin of the infamous chosen one, Harry Potter, and he’s the son of the man that killed Harry’s parents. Shes also the daughter of Sirius Black. But when sixth year rolls around things change, people get hotter *mainly y/n* and feelings are sparked. He who shall not be named comes back into play, and stuff is about to get real.