Modern young man Gu Changsheng travels to the world of immortal cultivation, losing all his cultivation in the process. Bound to a life-saving system, he completes bizarre survival-extension missions using everyday modern appliances. By chance, he witnesses Su Qinghan, a demonic empress disguised as a gentle woman, murdering someone. To save himself, he boldly declares his love for her. Along the way, he uses ordinary items such as hair dryers and rice cookers to overcome one crisis after another, leading Su Qinghan to mistake him for a hidden supreme expert. As they live together and gradually learn to get along, they begin to unravel the tangled truths surrounding their identities. Joining forces, they confront powerful enemies such as Lingxiao Pavilion and the Extraterritorial Overlord, uncover the truth behind a trial, and ultimately break free from the shackles of the Heavenly Dao to marry and remain together.