Zhao Zixuan transmigrates and discovers that this world contains a secret realm known as the Primordial World. Once they reach adulthood, people can enter the secret realm, where they must choose one of the three great sects as their faction. All his classmates choose the Chan Sect, while Zhao Zixuan chooses the Jie Sect. Everyone assumes he is doomed. Yet Zhao Zixuan thrives in the Primordial World and even turns around the fate of the Jie Sect, which was destined for destruction. By the time all the students leave the secret realm, their cultivation has reached only the Golden Immortal realm, while Zhao Zixuan has already attained the Dao Fruit of the Primordial Origin! This animated drama is adapted from the Tomato Novel The Classmates All Choose the Chan Sect, but I Choose the Jie Sect and Slaughter My Way Through, written by Shenhai Qianqian.