Based on the original Harry Potter movies
In the last Harry Potter and the deathly hallows part 2, you were a a student and also teacher,a young one and mostly,a pretty and cute boy that so breathtaking that people unable to take off their eyes on you,and you're potter twin,a little brother in fact,you both doesn't have a same face and personality
In the movie, there's many deaths eater or Voldemort followers including Malfoy Family. Voldemort announced that harry and you were dead. But lil that they do not know,you an potter still alive in the hands of Hagrid. And as Neville were angrily and proudly talk to Voldemort how harry and you still with them,then you and harry slowly get off from Hagrid hands and Harry start a war with Voldemort with their spells and wand which is Harry vs Voldemort.
Voldemort was speechless,well, secretly in awe of you like the rest of his followers and including Malfoy Family. Meanwhile you,you take people,which is Hagrid,Fred,Ron, Hermione and others and put them in the school,while you also preventing the death eater member attacking them