Gu Qian unexpectedly arrives in a vast fantasy world and becomes the head of an ancient clan renowned for its longevity. Faced with the clan's future and a maze of fate, he relies on his steady temperament and exceptional insight to reorganize the clan's order and guide Gu Kun back to his own path. During repeated trials in the immortal realms, he also meets companions such as Huangfu Shiyun and Li Zhenhan. Together, they cross secret realms, immortal dynasties, and ancient ruins in search of rare opportunities, witness the wonders of the Great Dao, and gradually come to understand the meaning of responsibility, conviction, and genuine affection through their choices and the things they protect.