The other Potter - Draco Malfoy

(This is a y/n story) You know about the famous harry potter the boy who lived, but did you know about the girl who lived? Y/n the girl who harry grew up knowing as his twin sister that was always smaller than him that he protected with his life. The only person that he would stand up for while growing up.
What happens when they both find out that they are wizards, got accepted to Hogwarts, and basically defeated an adult wizard as a baby. What will happen when they get to Hogwarts? Continue reading to find out.