Adapted from You Sijie's novel of the same title, this series follows Wen Dingyi - a high-ranking official's daughter forced to disguise herself as a male executioner's apprentice after her family's tragic downfall. Her path unexpectedly crosses with Yuwen Hongce, the Emperor's twelfth brother, as they join forces to uncover hidden truths. Amidst comedic mishaps and growing dangers, this unlikely pair embarks on a perilous yet heartwarming journey through the mortal world, where budding romance intertwines with deadly conspiracies at every turn.