In an accident, Wu Ming's soul and that of Xuanxiao Sect disciple Li Nianchu are linked by a mysterious golden chain, forcing them to share a single body. The two people with vastly different personalities make a pact of three chapters and return to the sect together. Amid sect trials, suspicions in the medicine lodge, and array crises, they gradually move from mutual wariness to trust. Exploring the method of fusing different cultivation powers, under the protection of master Shen Tingxue, they ascertain the truth, protect their fellow disciples, and jointly embark on a cultivation journey of breaking through themselves and growing in adversity.