When the fighting was over and the Officers Academy was reopened, Byleth was reinstated as a professor. His wife, Annette, took on a position alongside him teaching sorcery, and the couple spent many years educating and guiding generations of students. In their later years, they attempted to retire to a quiet life in a village near Annette's hometown. That quickly proved to be too quiet of a life for them, and so they opened up a local school and resumed teaching. They continued on as educators until the end of their long and happy lives.