Synopsis：During a fierce battle against the Hunyuan Demon Lord, one of the Eight Immortals, Lü Dongbin, inadvertently caused He Xiangu's demise due to his reckless actions. Banished to the mortal world, he encounters Bai Ying, a mountain stronghold leader who bears an uncanny resemblance to He Xiangu but possesses a completely different personality. To save Xiangu, Lü Dongbin, together with Bai Ying and the divine dog Zi'ao, embarks on a perilous journey to the East...