In the year 2961, the time is after humanity and nature has recovered the land. A hunter named Cygnus is called to rise above his duty. He provides for Last Arc, a once nomadic band of survivors in need of food and water that is now growing scarce. The answer must be found before a group of outlandish Heretics descend upon them. Cygnus must voyage across the treacherous landscape to defend his people. Sent by Nova, the matriarch of the band, she acts based on her vision for Cygnus to find a seed of hope. The future of Last Arc is for him to discover, Cygnus ventures into a hostile landscape in search of an answer for his people. On this journey of encountering many traps and dangers, Cygnus discovers what has been hunting him is his identity.
フウとスズは、ふたりで旅をしている女の子。目的は、子豚のプープーの墓参りだ。途中、ふたりはスズの赤ちゃんを父親の木嶋という男に見せに立ち寄ることになる。ところが、そのことを知った木嶋はビックリ。スズとの間に出来た子は、2年前に盲目の殺し屋・ジョージに始末させた筈だったからだ。焦った木嶋は、ジョージから拳銃を奪うと自らの手で赤ちゃんを始末しようと準備する。一方、そんなこととは知らないフウとスズは、プロゴルファーのオープンカーを盗んだり、赤ちゃんを奪おうとす
