My Girlfriend Is An Actual Princess - (Completed)

Izuku Midoriya was in class with his two adopted kids Eri and Eren. As Nezu and Aizawa came inside the classroom as they told the class that the Vermillion royal family is coming with three of the Knights of the Apocalypse. They meet them at the auditorium of the school when the youngest princess hops off the stage and goes towards Izuku.
They began to argue when Izuku just kissed her as she kissed him back. As the class learns about Izuku's girlfriend is an actual princess and that his the fourth knight of Apocalypse. What will happen to Izuku.