(W/A) Manabu Yashiro Living on Gui Cheng Island, called 'the most dangerous city in the universe,' is no easy task. Genetic doping is common for gangs to gain ultimate power. Shizuka, a young girl, takes on the most dangerous of assassin jobs, but she's not the one doing the killing. Rather, it's her brother, Nagi, a strong assassin who took a bullet to protect his sister, leaving him in a comatose state and having to use a wheelchair. However, Shizuka has figured out the key to waking her brother up: he must be faced with killing intent! Thus begins a violent journey of recovery, battling the most dangerous foes!

(W/A) Manabu Yashiro Nagi and Shizuka have managed to avoid a grisly death at the hands of two assassins--siblings from Nagi's past life enrolled at the mysterious ACADEMY. To make safe their escape from this terrifying duo, Shizuka moves them across Guicheng Island, from one safe house to another. But Nagi's whereabouts have reached the ears of the leader of the Academy, an iron-fisted administrator known only as Sensei, who dispatches a prodigy at the art of murder to track Nagi down once and for all: the rampaging rookie, Uzu!

(W/A) Manabu Yashiro In the parapsychic space where Nagi communes with Sensei, a black mass hangs ominously, symbolizing the bullet that pierced his brain, and the losses that came with it. Sensei wants Nagi to become a perfect vessel once more... or else, they have no use for him. Yet Nagi defies Sensei and vows to live an imperfect, human life, setting himself and Shizuka on an irreconcilable course to a cataclysmic confrontation...