Becoming a Magic Stick in the Last Years of the Dynasty

Gods and gods, the patient has a high fever, please give me the magic medicine! The protagonist takes out a needle... Gods and gods, what does the fairy world look like? The protagonist takes out a projector... Gods and gods, are mortals and immortals really not allowed to intermarry? The protagonist glanced at the other party's appearance... Get out... Gods and gods, I want to live forever! The protagonist thought for a while and said, how about we switch, I will be the emperor and you can cultivate as an immortal! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.