Y/n and Harry Potter are twins although Y/n was sorted into Slytherin and Harry in Gryffindor after meeting an egoistic wizard named Draco Malfoy. Draco and Y/n would rant to each of their friends. They were huge rivals and you might think Harry and Draco had the biggest rivaly but no, it was a bit smaller. In 5th year Draco accidentally saved Y/n from detention and now Draco thinks Y/n owe's him but Y/n doesn't agree. What'll happen when Draco needs help? Will Y/n agree to help or all she will want is just to get even?