Yuusha-sama no Oshishou-sama

Wynn lacks magical ability but dedicates himself to physical training in pursuit of his goal to become a knight and protect his country. Relying solely on his superior physical skills, he enrolled in a knight training school several years ago. A girl, two years his junior, who had consistently trained alongside him, reappears after many years. Now an adult, she has become a world-saving hero by defeating the Demon King. She refers to Wynn as her "Master," marking the start of a story involving a knight apprentice and his powerful former classmate.