Goshujin-sama wa Yamaneko-hime

Seirin is an outcast from an elite family and struggles to secure a job as a tutor for Mine, the 13-year-old last princess of the Shimuru main branch. Though described as graceful, Mine is also a problematic child who dislikes behaving selfishly. Seirin finds the role challenging but also wishes she would act more like a proper princess. The princess grows attached to him as her teacher. Meanwhile, the empire that had agreed to a peace treaty with Shimuru suddenly declares war, creating a difficult situation for Seirin. He begins to wonder if this conflict might be the start of a path toward becoming a hero.