Tham五岁时父母双亡；他的姐姐Chan因而送他到东北某处森林深处的一座寺庙。Tham由寺里的和尚抚养成人，他也出了家，生活与世无争。但一天，他突然遇到另一件扭转他命运的事情：在南方泰马边境惹拉府马洞县的姐姐，在伊斯兰组织的一次炸弹袭击中丧生，遗下小女儿Maria。他得前赴南方照顾他的甥女，同时也要面对跟姐姐一起在歌厅工作的一班姊妹。回到俗世，他往后会过甚么样的日子？
纯子（水原碧衣 饰）是含着金汤匙出生的千金大小姐，某日，她来到了中国为自己的画作采风，于无意之中结识了名为谭大志（杨钧承 饰）的中国青年。英俊正直的谭大志一下子就捕获了纯子的芳心，回到日本后，纯子依然无法忘却谭大志，于是，她决定为了谭大志，再度前往中国。 然而，让纯子没有想到的是，这第二次旅行竟然让自己成为了谭大志婚礼的见证人。可即便如此，纯子对谭大志的爱也没有丝毫的动摇，她甚至愿意为了这个男人放弃在日本的一切，留在中国。谭大志收到了纯子的父亲写给他的信，信上要求谭大志和纯子单独度过二十四小时。对于这一要求的意义，谭大志百思不得其解。
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.
