Synopsis

Nestled among the mountains of Ōmi lies Koka, a place renowned throughout Japan as the birthplace of the ninja. Yet hidden within the city government is a department never spoken of in public. Its name: The Koka city Ninja legacy office. One day, a newly appointed staff member is assigned to this mysterious division. Guided by an energetic female ninja senior, he is drawn into a world where ancient ninja traditions intersect with modern everyday life.