The Narumi clan has been mandated to ensure the protection of a young model, Maki Mizuno. The young woman is the target of the Morning Agency, who has hired the Blue Eye, a terrible squad of assassins, to neutralize her. Its leader, Hyôsui Nagumo, nicknamed the Executioner of Ice, was quick to send his assassins against Jin and Papillon! The clash between the Narumi clan and the Blue Eye risks having a huge impact in the world of shinobi...