The time travelling ROR
Requirements
1:Harry must travel back in time on accident without realizing it.
2:Harry must meet the founders.
3:Ron OR Hermione must say something very cruel about him behind his back so he runs to the ROR (room of requirement) and wish to get away
4:The castle needs to have a consciousness as in it can speak in people's minds
5:Harry must tell the founders about Voldemort and they must train him to be prepared to go back
6:Harry must want to go back
Optional
1:Harry can be in a relationship with any of the founders or their children
2:Harry can be dark,grey,or light
3:Fem Harry is allowed
4:If fem Harry then she can have a boyfriend or girlfriend back in future Hogwarts that she is trying to get back to.