The Last Heirs (Draco Malfoy)

Kaitlyn Elianna Simmons a girl who lives with her grandmother after her parents died moving into her grandmother's house at london but something seems different and Draco Lucius Malfoy a pure blood where will their paths take them after a big war at hogwarts came. Will they stay together which side are they really in? Is this reality or just in the book?

This is like around 2017 but in Hogwarts its like 1991.