It’s the ultimate showdown. The toughest fighters from “Baki Hanma” and “Kengan Ashura” clash in this unprecedented, hard-hitting martial arts crossover.

The story of a lower-class ninja assigned to a high-class mission.

Hachiman Hikigaya is an antisocial high school student with no friends or girlfriend and as a result has a distorted view on life. When he sees his classmates talking excitedly about their adolescent lives, he mutters, "They're a bunch of liars." When he is asked about his future dreams, he responds, "Not working." A teacher gets Hachiman to join the volunteer "service club," which happens to have the school's prettiest girl - Yukino Yukinoshita.

Motoko and Batou work to try to stop a terrorist organization whose symbol is the Scylla. Meanwhile, Togusa investigates a murder of a man who possessed a prosthetic leg manufactured by the Mermaid's Leg corporation.