By chance, Xiao Ke transmigrates into "The Young Master's Cultivation Journey", a supernatural fantasy novel he'd just finished reading, and becomes its protagonist's attendant, Xiao Qi. The protagonist is the lovesick young master Murong Ye. But Xiao Qi's true identity is an assassin from a rival family, sent to kill Murong Ye. Murong Ye has already seen through his disguise and killed him early on. Xiao Ke feels a chill run down his back, so he decides to cure the problem at its root and turn the protagonist, Murong Ye, into a sunny, cheerful, helpful young man.