can some help me find a story i cant remember the name what I  remember is its a story that happened after a war where the guy abandons a girl to become king and years later encouters her again but cant recognize her as the knight that he abandoned I also thing she was mute?

im looking for a manga it was a guy with white hair i think he was a teacher who gets bonded to another teacher and was afraid of him at first but loves him later on anyone know the name of it?

i swear can we please ban this uploader im so tired of this place holder B.S.