Namura Shin'ichi

This former student returned to his high school, Toryo, to become a tennis coach and English teacher, developing a secret romance with a student. When their relationship became public, he resigned to avoid complicating her future, moving to Hiroshima to pursue real estate. Despite his efforts to push her away, their feelings deepened, leading to an agreement where she would join him to study literature and become a writer upon her graduation, ultimately leading to their marriage.