Lin Xiao, a modern female college student, accidentally traveled through time and took over the body of Queen Shen Qingyi with the "Palace Fighting Promotion System". The system required her to compete for favors and poison concubines to accumulate "favor points." Shen Qingyi's soul was trapped in the sea of consciousness and witnessed Lin Xiao using her face to flatter the emperor. One time, when Lin Xiao was forced to take the "Ecstasy Pill" by the system, Shen Qingyi took advantage of the drug's conflicting effects to take back his body.
