In the past, ninjas were hired by those in power for covert operations such as espionage, sabotage, and murder. Even today, the demand for ninjas has not diminished. In a certain institution, young women are secretly trained to become ninjas. Asuka, Katsuragi, Hibari, Ikaruga, and Yagyuu are all students studying the art of ninjutsu and safeguarding their individual technique scrolls with great vigilance. This story chronicles their tumultuous school days as they strive to master the ways of the ninja.
