In order to pursue immortality, the scientific madman Duan Lang came to another world. The cruel reality gave Duan Lang a blow, and he could not practice! What made Duan Lang even more unacceptable was that his pet dog Erha had become a generation of demon kings! Fortunately, the cultivators in this world were extremely friendly to Duan Lang. The Holy Land Emperor Lord accompanied him to fish, the Nine Heavens Saint played the piano for him, and the Supreme Saint played chess with him... Looking back suddenly, Duan Lang suddenly realized that his old friends were not ordinary people!