As night falls across the rival academies, a growing threat from the Koga forces casts a shadow over the Iga kunoichi. After an intense encounter claims Mashiba Aya, Yatsurugi Shinobu’s closest ally, the same insidious influence now endangers Kage Lena. With the sole antidote secured deep inside the Koga Institute, the remaining fighters must mount a daring infiltration to save their companion before it is too late.
