File No. 177 Sectors セクター
西暦2188年、地球の衛星軌道上にはセクターと呼ばれるコロニーが5つあった。
三浦は箱舟計画の居住区をコロニーと似た構造で制作し、同じくセクターと名付けた。
森村を中心とした箱舟計画の関係者達は、次なる人類が正しい道を進むためにはナノマシンを使った戦争が起こる前の時代からやり直すべきだと考えた。しかし、どの時代から生まれる精神が最も望ましいのか結論を出せず、候補に上がった年代別に居住区を制作したため5つのセクターが生まれた。
In 2188, the satellite orbiting Earth had five colonies, called sectors. Since the residential zones that Keitaro Miura created for Project Ark are structured similarly to the colonies, they were also called sectors. Morimura, as well as other individuals involved with Project Ark, felt that humanity should start over from a time before the nanomachine incidents. However, they couldn’t come to an agreement as to how far they should go back, so they ultimately settled on preparing residential districts by era, which is how the five sectors were born.