Synopsis
Ittoki Sakuraba is confused by the constant protection from his mother, uncle, and childhood friend Kousetsu. Kousetsu's relentless surveillance and disregard for his privacy baffle him, until a charming second-year classmate named Satomi Tsubaki asks him out. This seemingly normal date takes a dark turn when Ittoki visits her home and realizes her real intention is to kill him. She is part of a larger conspiracy, but before she can act, his uncle and Kousetsu appear to rescue him, revealing themselves as ninjas. Safe at home, Ittoki learns from his mother that he is the 19th heir to the prestigious Iga ninja clan and now endangered by their longtime enemies, the Koga clan. To protect himself, he enrolls in the only remaining ninja training school in Japan—the Kokuten Ninja Academy—to develop his skills.
