The city state of Lisvalletta. Two suns rise above this city, and the people here live peaceful lives, but in the shadows, crime and illegal drugs run rampant. Among them is the dangerous, highly lethal drug "Anthem" which casts a dark shadow over the city. The SEVEN-O Special Crime Investigation Unit specializes in cracking down on Anthem. This unit operates in two-man "buddy" teams in what's called the "Double Decker System" to tackle the problem. Doug Billingham is a seasoned investigator, and joining him is Kirill Vrubel, whose abilities are mysterious and unknown.

『91Days』は禁酒法の時代、マフィアに支配された街が舞台。PVに登場する男・アヴィリオは、家族を殺された復讐を果たすため友を殺す―。そんな衝撃的なPVの内容は、気になることだらけ！　キャストやストーリー詳細は今後続報が発表されるとのことなので、期待しよう。
91天是以在禁酒令施行期间由黑手党控制的街道为背景发生的故事。PV中出场的男性名叫艾维利欧，为了帮被杀的家人复仇而杀了自己的好友。
这是一部为期91天的复仇剧。
具体的演职员名单将在今后陆续发表，尽请期待。

When the Republic is attacked, a group of pilots considered subhuman by their own country go to war under the command of a sympathetic officer.

The war on terror exploded, literally, the day Sarajevo was destroyed by a homemade nuclear device. The leading democracies transformed into total surveillance states, and the developing world has drowned under a wave of genocides. The mysterious American John Paul seems to be behind the collapse of the world system, and it's up to intelligence agent Clavis Shepherd to track John Paul across the wreckage of civilizations and to find the true heart of darkness—a genocidal organ.