Long Time No See (Headmaster Kaien Cross x Reader)

Kaien Cross asks you to be a teacher for his academy and you agree. When you get to the school you notice that Kaien is no longer a part of the vampire hunter association. You grew closer to Kaien again. Like you were kids again. When you and Kaien were younger you were as close of friends as friends can get. When he left for the vampire hunter association you became less social. When you heard he created his academy to end a war between vampires and humans you were very proud of him. He asked you to be a teacher at the academy and you gladly accepted his offer. What happens when your feelings for him grow? What will happen if you tell him? Will he return your feelings? Read to find out. I may add a lemon!