Lin Wei, 22 years old, is a junior student majoring in clinical medicine at a medical university. He majors in emergency medicine and minors in traditional Chinese medicine. He has strong hands-on ability, independent and tough character, and a little dark belly. He stayed up late to prepare for the exam and was accidentally electrocuted in the laboratory. Su Qiniang, 17 years old, is an orphan girl from Suji Pharmacy in the south of Chang'an City. Her father was a medical worker at the Imperial Hospital. He died of illness after being reprimanded for being involved in a palace fight, leaving behind the pharmacy and a box of medical books. Su Qiniang was frail since she was a child and fell into a coma due to high fever in the rain three days ago. She was possessed by Lin Wei's soul.