十五天，结束

　　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.

来自西域的舞姬阿离三年前惨死客乡，身首异处，她的妹妹阿月来到事发的客栈，联合戏法师李久成和县令张承合谋演了一出大戏，将三年前涉及此事的相关人等都聚于一堂，巧设妙计让当年害死姐姐的凶手互相指证现形，最终查明了姐姐死去的真相，洗去了污名并昭雪报仇。

70岁的寡妇托娃·沙利文在索维尔湾水族馆做夜班清洁工，三十年前儿子的失踪一直是她心中的痛。她与馆里聪明的太平洋巨型章鱼马塞勒斯建立起奇妙的羁绊，马塞勒斯总能在她难过时给予无声的陪伴。与此同时，迷茫的青年卡梅隆·卡斯莫正在寻找自己的生父，他的人生也因这场寻找而逐渐清晰。两条看似无关的故事线，因马塞勒斯的意外发现慢慢交织。