Adapted from the novel of the same name, A Writer's Odyssey tells the story of Kongwen Lu (DONG Zijian), the author of a fantasy novel series following a heroic teenager, also named Kongwen, on a quest to end the tyrannical rule of Lord Redmane, under the guidance of a Black Armour (GUO Jingfei). But through a strange twist of fate, the fantasy world of the novels begins to impact life in the real world, leading Guan Ning (LEI Jiayin) to accept a mission from Tu Ling (YANG Mi) to kill the author.