A young maidservant named Liu Ying saves a snake on behalf of her young mistress in a chance encounter. However, the snake turns out to be a thousand year ancient dragon named Yuchu Longyan, who now wants to marry her to repay her kindness. The two's lives then becomes entangled with each another as their love transcends over three lifetimes.

改编自玄机科技出品制作的超级动漫IP《武庚纪》，讲述了人族王子伍赓（任嘉伦 饰）遭遇国破家亡后，沦落为奴隶不弃初心，为父母和族人报仇的同时，继承先王遗志，带领人族、神隐族、妖族、海灵族反抗新䰠族压迫的故事。